B.
The tundra climate is a transitional climate between the Subarctic and ice cap climates. It is a region of rolling to nearly level terrain almost entirely devoid of trees. Polar climates like the tundra are characterized by very cold temperatures and generally dry conditions.
Answer:
From what I can see in that graph, I'd say that the rate of photosynthesis was greatest from May to July.
Explanation:
I believe the word is stubborn.
An "adaptation." It's the natural way that birds of flight adapt to their needs or environment which makes them more efficient.
