The amount of matter, energy, and time remain constant is true.
a. True
<u>Explanation:</u>
The total amount of energy in the universe is actually zero: its measure of positive vitality as an issue is actually offset by its negative vitality as gravity. Since anything which made in the universe is exactly zero at some initial point.
Whereas the measure of matter or energy remains the same. It can change from strong to the fluid to gas to plasma and start once more but the total amount of matter or energy in the universe remains constant over time. So the measure of issue, vitality, and time consistently stays steady.
