They have specialized legs, skin, feet, eyes, and bodies thats why they primarily live in water but can live on land as well <span />
Diatoms have cell walls composed of silicon dioxide.
A. silicon dioxide.
You would weigh less on Mars than on Earth because there's less gravity on Mars
All of those can potentially harm the earth. Human activity is a cause of pollution, and pollution is the cause of acid rain to some extent.
