Energy input is required as it is the activation energy needed for a reaction to start.
Answer to #1:
<span>Kilograms
Explanation:
The base metric unit of mass is grams.
Pounds also measure weight, but they are part of the imperial system.
Answer to #2:
Mass
Explanation:
Mass is how much space an object takes up, it is the amount of matter in an object.
Volume, on the other hand, is how much space an object takes up.
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Paper, pencils, spoons, trash cans, etc
You asked which theory is most widely accepted describing the formation of our universe? …. Big Bang Theory
