Biofuels

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Biofuels создатель Mind Map: Biofuels

1. Rising CO2 levels

1.1. Carbon dioxide keeps the earth warm without it the world would be a big snowball and we wouldn't be here.

1.2. How is carbon dioxide formed to keep the world warm?

2. Relationship

2.1. Climate Change

2.1.1. atmosphere - he envelope of gases surrounding the earth or another planet.