More cards in this set

Card 6

Front

what does cracking do?

Back

Preview of the front of card 6

Card 7

Front

how is cracking useful?

Back

Preview of the front of card 7

Card 8

Front

how does crude oil damage the wildlife?

Back

Preview of the front of card 8

Card 9

Front

what is the political problem of crude oil?

Back

Preview of the front of card 9

Card 10

Front

how can crude oil be separated?

Back

Preview of the front of card 10