Answer:
2.2kg
Explanation:
kilograms is a measurement of mass so the answer is 2.2kg
Salt is a substance because a substance is a material that has constant composition regardless of its source. Salt is the only option that matches this description
Answer:
The velocity of the rocket is 7.8 m/s
Explanation:
some ball when you bounce it it comes back up but according to gravity the energy goes away
A leaf is organic matter because organic matter refers to anything from something living. because a leaf is living or was at one point it is organic matter