Answer:
The answer is D.
Explanation:
Autotrophs are known as producers which gets energy from sunlight and produces their own food.
Rapid environmental changes can cause:
1) Species can become vulnerable to extinction.
2) A decrease or increase of populations.
3) Diversity of species.
Soil can cause a natural disaster by soil erosion
I'd use the library, the encyclopedia and the Internet.
The small intestine has cilia to absorb nutrients and reabsorb water
