Which of these describes how shivering helps the body to respond to the cold? * A(Muscle movements cause pores in the skin to absorb heat from the air that was previously lost
B(Muscle movements cause the blood to flow faster, which transports heat throughout the body
C(Muscle movements make the water level in the body increase, which increases internal temperature.
D(Muscle movements generate heat, which replaces heat lost to the environment.

B

Explanation:

The more your blood flows, the faster. Fast friction creates heat throughout the body. Therefore quickly warming the body.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.