Answer:
I believe the answer is endangered.
Explanation:
The main function of the alveoli is storage of air for a shorter period which permits absorption of oxygen into the blood.
It doesn't explain why something is true; it just states that it is true. A theory, on the other hand, explains observations that are gathered during the scientific process.
Explanation:
B. education pls mark brainliest if this helps :)
Higher atmospheric pressure and stronger greenhouse effect leads to the presence of water on the surface of Mars planet.
Mars must have had higher atmospheric pressure as well as stronger greenhouse effect than Mars today which is responsible for the presence of water in liquid form on its surface but when the disturbance or change occurs in the atmospheric pressure as well as greenhouse effect of the Mars planet.
The water that was present on the surface vaporized and removed from the planet so we can conclude that higher atmospheric pressure and stronger greenhouse effect leads to the presence of water on the surface of Mars planet.
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