Question 7
Imagine a scientist is conducting an experiment on the effects of acid on weathering rocks. In this experiment, there
are three different samples of identical rock pieces. The scientist does not add anything to the first sample. The
scientist adds 5 drops of acid the second rock and 10 drops of acid to the third rock. What is the dependent
variable?
a. Amount of weatering
b. Amount of Acid
C. Amount of rain
d. Number of Rocks

Answers

Answer 1

Answer:

a. Amount of weathering

Explanation:

In this experimental setup, the amount of weathering is the dependent variable. It is that variable that depends on the action of another.

The dependent variable usually surfaces as the one being tested for. The independent variable does not rely on anything. It is usually the cause of the phenomenon observed in the experimental procedure.

In this case, the amount of acid is the independent variable.

The dependent variable is the amount of weathering.


Related Questions

what inferences can we make regarding earthquake magnitude, frequency, or concentration​

Answers

Answer:

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

Sometimes an earthquake has foreshocks. These are smaller earthquakes that happen in the same place as the larger earthquake that follows. Scientists can’t tell that an earthquake is a foreshock until the larger earthquake happens. The largest, main earthquake is called the mainshock. Mainshocks always have aftershocks that follow. These are smaller earthquakes that occur afterwards in the same place as the mainshock. Depending on the size of the mainshock, aftershocks can continue for weeks, months, and even years after the mainshock!

Explanation:

Give an example of epidemiological transition model only using 6 words.

Please help me.

Answers

Answer:

Epidemiological is the study of the interaction of humans and the environment. It describes the various population pattern with various time and fertility rates. It is studied by epidemiologist. The main factors of epidemiology is birth rate, fertility, life expectancy, death rate etc.

What is the outcome of hotspots?

A. Formation of islands

B. Constant volcanic eruptions

C. Divergent boundary creation

D. Transform boundary creation

Answers

Answer:

A) Formation of islands

Explanation:

The outcome of hotspots is the Constant volcanic eruptions. Thus, the option (b) is correct.

Waht is hotspots?

A hotspot is a huge plume of heated mantle layer that rises from the planet's interior. Tectonic plate borders have no bearing on where a hotspot is located on the surface of the planet. Similar to how a line of melted wax appears when a sheet of parchment paper is slowly dragged over a burning candle, a line of volcanoes develops as a plate moves over a hotspot.

These same "hotspot" volcanoes are formed when a slender stream of hot crust rises up from the core of the earth and melts a fissure in the plate to allow magma to seep upward. Continuous volcanic outbursts are the result of hotspots. When one of the Earth's plates passes over an abnormally hot region of the mantle, hotspots develop.

Therefore, option (b) is correct.

Learn more about on hotspots, here:

https://brainly.com/question/4309840

#SPJ6

What if the United States, Mexico, and Canada took the EU's example and joined to form a North American Union? Based on your knowledge of the European Union, describe two setbacks or hurdles that this idea might face.

Answers

Answer:

If a North American Union was created, the biggest problems that would occur would be rapid population shifts, and lower wages because of much-increased competition on the labor market.

Explanation:

A North American Union, by EU's example, would mean that the US, Canada, and Mexico will function as one in many ways. The borders will be open, both for economic actions and for free movement of people. While this may seem good at first sight, it will actually cause some major problems as well.

The US and Canada will face a major population increase in a very short period of time. The people from Mexico will rush to move into these two countries because of better living conditions and more job opportunities, which in turn will cause massive depopulation in Mexico.

On one side, Mexico will face major economic problems because of a sharp decline in its labor force, while on another side, the people in the US and Canada will face problems because there will be tens of millions of new laborers that will offer their services for lower wages. This will lead to tens of millions of people losing their jobs or not being able to find jobs, or if they do, they will have to work for less, meaning that they will be poorer.

- Why does air pressure change with altitude?

Answers

Answer:

Atmospheric pressure decreases as the height of a surface above ground level increases. This is because, as the altitude increases: the number of air molecules decreases. the weight of the air decreases.

Answer: there is more space between air molecules at higher altitudes  

Explanation:

Draw a response to explain how the convection currents model connects with the climate in one of the areas below:


Amazon Rain Forest
Sahara Desert
Antarctica
Global Ocean Currents


Explain the model you drew in question 1. Be sure to identify which area you selected in your opening sentence.

pls someone help i am so desperate!!

Answers

Answer:

The convection currents model connects with the climate in Global Ocean Currents.

Explanation:

Ocean currents flow to larger distances and together form the greater conveyor belt. The current model plays a dominant role in the climate of earth regions. They influence the temperatures of the regions through which they travel. The surface ocean currents are driven by winds and effects of the Coriolis force. Deep ocean currents are driven by density and temperature changes. The thermohaline circulation in oceans forms a part of the ocean circulation and driven by temperature and density variations. They get the heat from the magma that lies in the mantle and moves in convection currents which rises towards the curst and cool down.

which of the following describes a custom

A. doing your homework

C. not littering

B. shaking hands when you greet someone

D. studying geography ​

Answers

Answer: Shaking hands when you greet someone

Explanation: When someone offers their hand, you will most likely shake it back. If told to do homework or study, you don't necessarily need t do it, same with littering.

Answer:B- shaking hands when you greet someone.

Explanation: A customs is a traditional and widely accepted way of behaving. It is customary to shake someone’s hands when meeting them.

World trade is the exchange of money, labor, goods, and services across international borders. What factors promote and affect world trade?

PLEASE ANSWER QUICK!!

Answers

Answer:

Roads religion and much more

Explanation:

It is the road religion

Where are possible solutions to reducing the level of CO2 in the atmosphere

Answers

Answer:

more electric cars

less huge cow farms

less use of fossile fuels

Explanation:

Answer:

Solving climate change is a huge international challenge. Only a concerted global effort, involving the governments of all nations, will be enough to avert dangerous consequences. But that said, the individual actions of everyday people are still crucial. Large and complex issues, like climate change, are usually best tackled by breaking down the problem into manageable bits.

For carbon emissions, this means reducing the CO2 contribution of each and every one of the six and a half billion people on the planet. But what can you, as an individual person or family, do that will most make a difference to the big picture? Here are my top ten action items, which are both simple to achieve and have a real effect. They are ranked by how much impact they make to ‘kicking the CO2 habit’.

1. Make climate-conscious political decisions. Some commentators said that the 2007 Australian Federal election was the first to be strongly influenced by the stance made by competing political parties on climate change. Regardless of how true this may be, it is obvious that the strong and urgent action needed to combat climate change will require a healthy dose of political will, and the courage to make tough choices. This willpower comes from voters, who consistently demand real action and can see through ‘greenwashing’ (pretend ‘solutions’ and half-measures that do not do the job). Climate change should be a totally non-partisan issue since it affects all people and all countries. If climate change is not perceived by both sides of politics as a ‘core issue’, it will inevitably be marginalised by apparently more immediate concerns. So assess policies clearly, and make your vote count towards real climate solutions – each and every election. This is the only way a global solution can be put in place, in time.

2. Eat less red meat. Traditional red meat comes from ruminant livestock such as cattle and sheep. These animals produce large amounts of methane, which is a greenhouse gas that packs 72 times the punch of CO2 over a 20 year period. Other types of meat, such as chicken, pork or kangaroo, produce far less emissions. At average levels of consumption, a family’s emissions from beef would easily outweigh the construction and running costs of a large 4WD vehicle, in less than 5 years. There is no need to cut out red meat entirely, but fewer steaks and snags mean far less CO2.

3. Purchase “green electricity“. The future of energy clearly likes in renewable sources such as solar, wind and wave power and ‘hot rocks’. Even without climate change, there are limits to available oil, natural gas and coal. ‘Green power’ is electricity that comes from these technologies, but is delivered to you in the same way as ‘dirty power’ from fossil-fuel burning. That is, down your power lines. You can buy enough to replace your entire energy usage, or some fraction (I recommend going for 100%; the cost is a few more cents per kilowatt hour of electricity). Most energy suppliers now offer this service and will purchase energy from green sources that is equivalent to what you use. As more people take up this scheme, it will drive ever greater investment in these technologies, reduce cost of delivery, and so further hasten the pace of update. It’s a feedback, and you can be the catalyst of change. [Note some problems with GreenPower here]

4. Make your home and household energy efficient. We all unthinkingly leave lights on when we are not in the room, or switch off the TV by the remote instead of at the wall, fire up the heater on when we could put on an extra layer of clothing, or turn on the air conditioner when we could open the window and turn on a fan. It’s force of habit – a bad habit we can break, with just a little thought. Behaviour change lies at the heart of most individual actions on reducing our individual carbon footprint. By being sensible about your use household energy use, and making sure your house is well insulated, you can make a huge dent in your CO2 emissions. Oh, and it will save you plenty money that you no longer spend on wasted energy, year in, year out.

5. Buy energy and water efficient appliances. Aside from behavioural change, we can invest in more sensible technologies that help us in our day to day lives. When buying new electronic appliances, air conditioners or washing machines, look at their energy and water usage. The more energy efficient they are, the more they’ll save you in the long run, and the lower their CO2 impact will be. In most cases the ‘payback period’ – the difference between the initial cost of a high versus low efficiency appliance and the long-term savings in lower electricity and water bills, is only a matter of a few months to a few years. After that, you are laughing all the way to the bank, and doing something meaningful to combat climate change at the same time.

What culture region was an ally of Sparta?

Answers

Sparta was the head of an alliance of independent states that included almost all land powers of the Peloponnese and central Greece, as well as that it had the sea power Corinth. Thus being said, the Athenians had the stronger navy, and the Spartans had the stronger army. Sparta and its allies, except for Corinth, were mostly land-based powers.

Sparta was leader of an alliance of independent states that included most of the major land powers of the Peloponnese and central Greece, as well as the sea power Corinth. Thus, the Athenians had the stronger navy and the Spartans the stronger army.

Brazil gets along well with other countries, but what do Brazil and Argentina have a huge rivalry over? a. basketball b. swimming c. soccer d. baseball​

Answers

Answer:

soccer

Explanation:

FIFA world cup

If there has a switch from snowfall to rainfall...is that a positive or negative...in Antarctica???​

Answers

Answer:

Positive :)

Explanation:

what is 56÷12 it my math and idk which one

Answers

Answer:

4.67

Explanation:

Which country in Africa has the following characteristics?
i. It has an emerging market economy.
ii. It is the wealthiest country in Africa.
iii. It has a history of racial segregation.
A.
Libya
B.
Egypt
C.
South Africa
D.
Nigeria

Answers

South Africa i believe

Answer:

C

Explanation: I hope you get a 100%

which of the following is an example of extensive agriculture?
•wet rice agriculture
•plantation agriculture
•mediterranean agriculture
•dairy farming
•pastoral nomadism

Answers

I think the 3rd one meditation

Answer:

option 3

Explanation:

Math the feature or term to the characteristics in column 2



Earthquake

Fault

Himalayas

Subduction zone

To:

When one plate goes under another

Brake in the crust

Caused by continents colliding

Occurs when a fault slips

Answers

Answer:

Earthquake - Occurs when a fault slips

Fault - Brake in the crust

Himalayas - Caused by continents colliding

Subduction zone - When one plate goes under another

Explanation:

The earthquakes occur when a fault slips if we talk about earthquakes that occur at transform boundaries. Basically, the fault slips deeper because of the big pressure it causes on the crust below, and as it does and hits slightly lower it releases huge energy.

The faults form when the crust breaks, and this happens at transform boundaries. Depending on the pressure that will cause the crust to break, they can be caused by vertical or horizontal pressure.

The Himalayas are the tallest mountain chain in the world, and they have formed when two continental plates collided, those plates being the Eurasian and Indian ones.

Subduction zone is a zone where one tectonic plate moves below another tectonic plate, with the denser and lower (or simply much smaller one) goes below the less dense and higher positioned (or simply much larger one) plate.

How much of the world's population is in Asia?

O 1/5
O 2/5
O 3/5
O 4/5

Answers

It takes up 60% or 3/5

I need help !!!!

match the theme in column 1 to the correct description in column 2 for North America

Answers

Answer: 1. Location 2. Place 3. region 4. Movement

Explanation:

Answer:

Location: Northern Half of Western Hemisphere.

Place: Most climates of any continent.

Region: Canada, United States, Mexico, and Caribbean, with subdivisions foe each.

Movement: Immigration from Europe and Africa after 1500.

Explanation:

Answer for Ap3x

PLS HELP, WILL REWARD BRAINLIEST!!

Answers

I’m my opinion the Brazilian government should stop development in the forest because they are cutting down trees which is home to thousands of species. Also the Brazilian rainforest provides so much oxygen in this planet that it would impact us if it just completely disappeared.

PLS HELP, WILL REWARD BRAINLIEST ASAP!!

Answers

Answer:

B

Explanation:

Which of the following countries did not have one of the Seven Ancient Wonders of the World?
A. Greece
B. United States
C. Egypt
D. Turkey

Answers

Answer:

B. United States

Explanation:

The United States is the country without one of the Seven Ancient Wonders of the world.

The seven ancient wonders of the world are;

The Great Pyramid of Giza found in Cairo, EgyptThe Hanging Gardens of Babylon, IraqThe Statue of Zeus at Olympia, GreeceThe Temple of Artemis at Ephesus TurkeyThe Mausoleum at Halicarnassus TurkeyThe Colossus of Rhodes in GreeceThe Lighthouse (Pharos) of Alexandria, Egypt

We clearly see that non of these wonders can be found in United States.

Out of all the countries in the options, the one that did not have one of the Seven Ancient Wonders is B. the United States

Some of the Ancient Wonders include:

Colossus of Rhodes ⇒ Greece Great Pyramid of Giza ⇒ Egypt Temple of Artemis ⇒ Turkey

There was no ancient wonder to the found in the United States unlike the other options which might be because the U.S. did not house any of the foremost ancient civilizations.

In conclusion, option B is correct.

Find out more on the ancient civilizations at https://brainly.com/question/793824.

b) What is the formuls to calculate the perimeter of triangle​

Answers

Answer: P=a+b+c

Explanation:

Answer:

b

Explanation:

Base+side+side=perimeter

which of the following sets a represents a function

Answers

I think E. Function gets on my nerves to be honest

Answer:

I think it's A.

Explanation:

Hope this helps :)

8. Which of the following lists the BEST map scale for
depicting areas clearly, from largest to smallest?
(F) the world, a continent, a country, a city

(G) a continent, the world, a city, a country

(H) a city, a continent, a country, the world

(I)a city, a country, a continent, the world

(J) a country, a continent, the world, a city

Answers

F) the world, continent, country, city

Name human factors influencing borders?

Answers

Answer:

These factors of shape and size can influence the ways in which human activity is structured; for example, land use, transportation, and settlement patterns. Sometimes the shape and size suggest that a country may want to expand its borders in order to increase its size, change its shape, and/or control more resources.

I tried, hope this helps :)

A country of allegiance or "what side you'd fight on in a war" is referred to as:
A.Race
B.Ethnicity
C.Nationality
D.Religious Group

Answers

I am not sure about this but,
C . Nationality

(BRAINLIEST) Read the journal passage from one of de Soto’s expedition members.

We continued our march until we came to two rivers, which we crossed by making rafts of pine trees, and entered a province called Otoa, where we found a much larger village than we had yet seen. We captured some Indians, to serve us as guides and interpreters.

How did American Indians most likely feel about Europeans after being captured to serve as guides and interpreters?

The American Indians felt appreciated because they were able to help.
The American Indians felt attacked and abused because they were captured.
Catching diseases from the Europeans angered them.
Being used for things other than guides and interpreters angered them.

Answers

The answer is, The American Indians felt attacked and abused because they were captured

Answer:

its b :)

Explanation:

3. Based on the timeline, what earlier events may have caused the Age of Revolution? Why do you think that was?

Answers

Answer:

Correct answers are The Enlightenment and the Age of Absolutism.

Explanation:

Feudal system that was established in medieval Europe was left certain scars on the political systems in Europe and even outside. Group of philosophers and thinkers believed that government should serve the needs of people and that it is why they started questioning the authority of absolute leaders. Many countries in Europe, such as Habsburg Monarchy, France and Russia were absolute monarchies. Rulers believed they have the divine right to rule without restrictions. That is what enraged many people, and with the support of ideas of Enlightenment Age of Revolution started.

Which one is false? The average employee in Tokyo commutes(travels) 90 mins to work No car can be registered in Tokyo without proof that the owner has a place to park it. The Japanese train and subway system is so advanced that the Japanese buy fewer cars today than in 1960

Answers

Answer:

The Japanese train and subway system is so advanced that the Japanese buy fewer cars today than in 1960

Explanation:

The Tokyo subway is a part of the rapid transit system that includes Tokyo Metro and the Toei Subway which is in Greater Tokyo area of Japan.

The following statement is false:

The Japanese train and subway system is so advanced that the Japanese buy fewer cars today than in 1960

i dont understand how to do this and grades are put in today and im failing badly

Answers

I hope you do ok I looked at it but was confused

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