Answer:
it enters the "main sequence" phase of its life
Explanation:
The stomata open up to absorb the carbon dioxide needed to perform photosynthesis.
The trees being so tall, eruption on rocks shows that the earth has aged, and weathering. Because scientists can track down years from these things listed
Answer:
Scientist have learned by studying seismic waves that the earth has liquid in its outer core. They also can predict if a earthquake might happen in a spot in the next hundred years or so.