Answer:
oxygen
Explanation:
oxygen is very good for the health of every living thing
D because animals changing colors is a mutation
The answer is c. number of protons and d. atomic number. The proton number can identify an element. And also the atomic number is equal to the number of protons.
Explanation:
A 57.9 g sample of glass is cooled by 2.70'C how much heat does it release
1560
I think external forces acting on an object may include friction, gravity, normal force, drag, tension, or a human force due to pushing or pulling can be represented by a free body diagram.
