I think the first one is right !.... but the for the other one it's B .
Answer:
Your answer is 1/2 times 2/3 to the power of t.
Explanation:
Such direct observational evidence is limited, however, and clouds remain the biggest source of uncertainty--apart from human choices to control greenhouse gases—in predicting how much the climate will change
Answer:
b. All three plants have a common ancestor that had leaves.
Explanation:
The products are H2O and CO2 which then become the reactants for photosynthesis