Pollution is always a good way to go but you don't have to do air pollution you can do water pollution or both air and water pollution.
Answer:
Lizards / Reptiles
(Scientific four-legged snake is: Tetrapodophis)
Explanation:
couldn't add answer ^^ ignore comment :-)
False is right.....................
No they are lower because they don't go so high.
Answer:
They are large macromolecules
Explanation:
Such as lipids, carbohydrates, proteins, or nucleic acids