Question 1
What causes the greenhouse effect? what does it do the temperature of the planet?

Question 2
What biotic factor uses carbon?
A. Only trees
B. All living things such as plants and animals

Question 3
For animals and humans, carbon is —
A. exhaled (breathed out)
B. inhaled (breathed in)

Question 4
Photosynthesis takes place in plants. It’s carbon a reactant (taken in) or a product (released) during this process

Question 5
(mark all that apply) after an organism dies and decomposes, the carbon in its body gets recycled back into the environment. What two options can carbon turn into (2 answers)

Question 6
A. after many years turns into fossil fuel‘s such as oil and coal
B. turns into rocks
C. released back into the atmosphere (air)

Question 7
why is the carbon cycle important for plants and animals?