Nuclear fusion<span> is the process of combining two lighter nuclei into a single heavy nucleus (part of an atom). This process is also called a nuclear reaction and it releases a large amount of energy. <span>In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen atoms to form helium, but larger stars can produce elements as heavy as iron. </span></span>
The answer is A. the presence or absence of an envelope
More dense means something has more molecules per volume. Less dense means that something has less molecules per volume.
Think of cheesecake vs. a regular cake. In a regular cake, there are often holes within the cake, making it light and fluffy. In a cheesecake, the cake is packed and there is not very much room in between the molecules. This is why some people refer to cheesecake as a "dense" cake.
Answer:
i think it is the first one
Explanation:
cows make manureand algae is a decomposter for it
At the start of cellular respiration, energy is stored in the bonds of glucose molecules, but at the end of cellular respiration, energy is stored in the bonds of ATP molecules.
