(Q).
If when something melts, it does not change mass, then what happening to something will not change its mass? Answer choices: - growing - Dilution - energy - doubling - melting - It expands - Energy. - shrinking
(A).
melting

(Q).
If unequal heating of the Earth's surface by the Sun causes tropical wind and ocean circulation, then unequal heating of the Earth's surface by the Sun causes ocean circulation and what? Answer choices: - Energy. - climate - raincoats - The atmosphere - tropical wind - freezing rain - pouring down - to move people
(A).
tropical wind

(Q).
If athreatening behavior by a fisher can make a porcupine extend its quills, then what might a porcupine do if threatened by a fisher? Answer choices: - dig in the dirt - Decrease bodily water - killing insects - lower its quills - kill them - humans disturb it - show its teeth - show its quills
(A).
show its quills