Melting wax evaporating gasoline freezing water these changes are all examples of a) nuclear changes. b) physical changes. c) chemical changes. d) energy consumption.

hu !

B) physical changes.

Explanation:

A physical change is defined as a change in which there is alteration in shape, size and state etc. No new substance gets formed in these reactions.

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

A nuclear change is defined as a change in which a change in nuclear composition takes place.

Melting wax, evaporating gasoline  and freezing water  are all physical changes as they only involve change of state and no change in chemical or nuclear composition takes place.

indium, and thallium have three electrons i think

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.