Answer:
Thigmotropism is a plant's response to touch.
Thigmotropism is a plant's response to an external stimulus.
Thigmotropism can occur quickly or slowly.
Thigmotropism may involve the way in which a plant grows.
Thigmotropism may involve the closing and opening of plant leaves.
Explanation:
A) Thickness of the sedimentary rock layers
I think it’s D............
<span>Atomic mass=Total number of protons + Total Number of neutrons.
Here
Total number of protons=8
Total number of neutrons=9
Atomic mass= 8 + 9
= 17
Answer is 17.</span>
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