Why is air a renewable resource?
a. it can be reused
b. it is in a limited supply
c. it is a mixture of gases
d. it provides us with an important need

I think it is A. It can be reused which makes it renewable.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.