HELP I WILL MARK YOU BRAINLIEST!

a

Explanation:

These gases come in and out of a tree through tiny pores on its leaves called stomata. These gases are part of a process called photosynthesis. Trees take in carbon dioxide from the air, use sunlight as energy to turn that carbon dioxide into sugars, and then uses those sugars as their food.

"d.) carbon dioxide and hydrogen sulfide"

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