Answer: When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.
Explanation:
The purpose of this is to indicate the changes or effects in pulse rate bought by exercise.
We can also call this the control set up, it is where all the setting is same except without the variable that is going to be tested. So in this case, that variable is exercise.
So it is supposed that both set up has same settings such as the amount of time measuring the pulse, or the position of arm or neck etc.
Because the sun heats up the sand causing the atoms to move much faster than at night
Answer:
I would say it is A
Explanation:
I mean if you think about it, no one really knows how science is going to work. It is different each time.
Answer:
Due to adaptation and evolution, the giraffes' neck has evolved to be extremely long. As we know, giraffe's tend to eat leaves from higher up branches in the trees. Since few mamals are able to reach up that high, they have more food.
To put it simply, a giraffe's neck has evolved to be so long due to their food choices.
