Answer:
chloroplast is the answer
Secondary since plants/animals already lived there, but got killed/driven out of the area they lived/thrived in/on.
Answer:
1 cilia 2 I don't know I'm so sorry
The sun. Greenhouse gases absorb heat better. So the more of these gases, the hotter it gets. However, the earth itself is naturally heating, but it goes too fast for live to adjust to the temperatures.
B. The U.S stock market crash and Franklin D Roosevelt’s policies
