U go in to the bar with i b u the is italics and u press it again and it will turn it off but u have to have the text selected
Answer:

Explanation:
We'll be using u-substitution for this problem.
Let

Substitute

Split the fraction

Move the constants out

Simplify

Integrate

Substitute

Explanation:
Acid rain can cause serious problems for many different animals and plants. As a result, the entire food web is affected. For example, acid rain can cause phytoplankton in lakes to die. Insects, which rely on phytoplankton for food, now have less food to eat, and they begin to die as a result.