Answer:
The answer is Spanish flu
Answer:
Sediment builds up over organisms.
Explanation:
Answer: number 1
Explanation: that is when we could first sustain life because that is when we gained atmosphere and when we could hold carbon and oxogen
Answer:
An arterie is a vessel that carries blood away from the heart, and a vein carries blood to the heart
Explanation:
Mark as barinly plzzz :))))