Answer:
<h2>
Radiation</h2>
Explanation:Radiation is a process in which heat is transferred from one point to another directly without any intervening medium.Radiation involves the transfer of heat using electromagnetic waves through space.
Capillaries<span> are the smallest of the body's blood </span>vessels<span>. They are only one cell thick, and they are the sites of the transfer of oxygen and other nutrients from the bloodstream to other tissues in the body; they also collect carbon dioxide waste materials and fluids for return to the veins.</span>
B. When the environment is damaged, our health improves
During digestion, kidneys are the organs responsible for extracting certain minerals and maintaining proper fluid balance.
