Answer:
A) chemical reactions.
Explanation:
"Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: As we can see, water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change.
"
Answer: CAPILLARIES
Explanation: Gas exchange is the delivery of oxygen from the lungs to the blood stream, and the elimination of carbon dioxide from the blood stream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessel is called capillaries, which are located in the walls of the alveoli.
<span> The quantity of stomata compared between plants in tropical environments and plants in hot, arid climates is
</span> Plants in hot, arid climates would have fewer stomata because they would need to prevent undesirable water loss from the plant leaves.
because in tropical it has more stomata
so correct option i conclude is B
hope it helps