I'm pretty sure it's primary growth. I might not have studied this type of biology yet, but secondary growth would definitely not be the answer.<span />
Answer:
The color of the surfaces because an object with a black surface will absorb and reradiate energy faster and at a higher concentration than the same object with a lighter colored surface.
Yes, since B and C will be pushing towards each other, it will form a mountain.
<span> the time period in which an embryo develops</span>
