More cards in this set

Card 6

Front

How is CO2 removed from the atmosphere?

Back

Preview of the front of card 6

Card 7

Front

How is the CO2 returned to the atmosphere?

Back

Preview of the front of card 7

Card 8

Front

How is the Carbon passed on from organism to another?

Back

Preview of the front of card 8

Card 9

Front

What is nitrogen fixation?

Back

Preview of the front of card 9

Card 10

Front

How are nitrogen compounds returned to the soil?

Back

Preview of the front of card 10