fill in the gaps with the correct preposition.They,correct the statements.Compare with your partner. 1.LifeEarth arose in an oxygen-rich environment.
2.Our bodies process oxygen 100% effectiveness
3.Oxygen has always been present the atmosphere.
4.The appearance of photosynthesis plant is known as the Great Oxidation Event.
5.Evidence suggests animal life appeared
land and the oceans about the same time.
6. Land animals depend land plants for most of their oxygen
ответ
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Объяснение:
Lifeon Earth arose in an oxygen-rich environment.
2.Our bodies process oxygenfor 100% effectiveness
3.Oxygen has always been presentin earth’s the atmosphere.
4.The appearance of photosynthesis? plant is known as the Great Oxidation Event.
5.Evidence suggests animal life appearedon the
land andin the oceansfor about the same time.
6. Land animals dependeating land plants for most of their oxygen