Which greenhouse gas is emitted when people burn fossil fuels for energy?
a)nitrogen
b)oxygen
c)carbon dioxide
d)helium

the correct answer is-

C) carbon dioxide.

Fossil fuels ( such as oil, coal, and natural gas that are formed by dead remains of life forms like animals and plants) are burnt in order to release the energy that is stored in them. This is also known as combustion and emits carbon dioxide, which is a greenhouse gas and contributes to the major global climate change.

Thus, option C) is the right answer.

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.

the answer to your question is sperm