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Oxygen

we inhale oxygen and exhale carbon dioxide

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14y ago

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Why do humans need to breathe in oxygen?

In order to live.


Do living things need to breathe?

yes, animals, humans, and even plants nêd air to live


Why do whales need to breathe air despite living in water?

Whales need to breathe air because they are mammals, like humans, and require oxygen to survive. Even though they live in water, they have lungs and need to come to the surface to breathe.


What is the compound preposition in the sentence the air is so thick at the surface that humans would need scuba gear in order to breathe?

in order to


Do humans need nitrogen to breathe for survival?

No, humans do not need nitrogen to breathe for survival. The air we breathe is primarily made up of oxygen, with only a small amount of nitrogen.


What is the difference among marine mammals and other mammals?

Marine mammals live and water and they need to surface to breathe. While land mammals can breathe just as humans do.


Do humans need oxygen?

Absolutely. It's what we breathe.


What 2 things do humans need to breathe?

lungs and muscles


What gas do humans need breathe in space?

the suit of astronaut


Why is agriculture good for the economy?

because we need it in our lives in order to eat, live, breathe. . . etc.and its just great!!!


What iype of gas do humans need to breath?

Oxygen is the gas humans and animals need to breathe in.


What air do you breathe to keep electrons moving along from the first to the last chemical carrier?

The air that one breathes to keep electrons moving along from the first to the last chemical carrier is oxygen. Oxygen is necessary for all life forms to exist and enable existence. For instance, humans need the trees and plant life because they take in or breathe the carbon dioxide that humans expel, and then expel the oxygen that humans need to breathe in order to maintain life.