Question 3
What is the asthenosphere?
The tectonic plates
The Earth's crust
The lower mantle
The molten part of the upper mantle.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!