D.
They break down dead organisms.
Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
<span>How might an increase in the rate of photosynthesis affect the conditions necessary for cellular respiration? Increased oxygen and glucose from photosynthesis would increase cellular respiration. Increased water and carbon dioxide from photosynthesis would increase cellular respiration. Increased water and carbon dioxide from photosynthesis would increase the amount of convertible ADP. Increased carbon dioxide and glucose from photosynthesis would increase cellular metabolism</span>
Because the moon is significantly smaller than earth,
Its gravitational pull is also smaller and weaker.
So he weighed much less on the moon than he did on earth because of the change in gravity
