1. Acid rain changes the minerals in rocks to other minerals. What is this process called?

a. chemical weathering *******
b. deposition
c. erosion
d. physical weathering

2. Which of the following was formed by erosion?
a. the Great Plains
b. the Hawaiian Islands
c. the Grand Canyon *******
d. the Mississippi delta

3. Which is NOT a cause of chemical weathering?
a. acid
b. water
c. oxygen ********
d. carbon dioxide

The first two are right, but I'm confused on the last one because I think all of them are causes of chemical weathering.

I agree that the first two are correct. Here is a site that lists acid rain, water, oxygen, and carbon dioxide as the four major types of chemical weathering.

https://courses.lumenlearning.com/geo/chapter/reading-chemical-weathering/

water******* is the last one!

Thank you DrBob222 and Emily

Well the third one is wrong.. the answer they are looking for is water

To find the answer to question 1, we need to understand the process described. Acid rain causes changes in minerals in rocks, suggesting that a chemical reaction is taking place. Among the given options, the process of changing minerals in rocks through chemical reactions is called chemical weathering. Therefore, the correct answer is (a) chemical weathering.

For question 2, we are looking for a landform that was formed by erosion. Erosion refers to the process of wearing away or transporting materials by natural forces such as water, wind, or ice. Among the given options, the Grand Canyon is a prime example of a landform that resulted from erosion. Therefore, the correct answer is (c) the Grand Canyon.

In question 3, we are asked to identify a cause of chemical weathering that is NOT valid. Chemical weathering is the breakdown or alteration of rocks and minerals through chemical reactions. Among the given options, water, oxygen, and carbon dioxide are all known to contribute to chemical weathering processes. However, oxygen is not a direct cause of chemical weathering. Therefore, the correct answer is (c) oxygen.