Ways to reduce global warming:

Too many ___ gases are being released into the atmosphere

Plants absorb ___

Melting of the polar ice caps leads to --

Melting of polar caps also leads to -

Too much carbon dioxide mixing in the oceans causes -

measures how alkaline or acidic something is

A measurement of 7

A measurement of above 7 is

A measurement of below 7 is

H2 is the symbol for:

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