memory game

LIQUID

TRIGGER

REDUCE

REVERSIBLE

HEAVY

GREENHOUSE GAS

ISA ES UN

SPEW

HARMFUL

are gases in the earth's atmosphere that trap heat.

make smaller or less in amount, degree, or size.

That it weighs a lot or that it has more weight than is normal.

causing or likely to cause harm.

That you can return to a previous state or situation.

expel large quantities of something rapidly and forcibly.