In the fossil record, there is no evidence of anything living on land before plants. Why are plants necessary before more compli
cated animals can evolve? A. Plants were needed to produce oxygen.
B. Plants were not needed.
C. Plants were needed to change the soil content.
D. Plants were needed to produce Carbon dioxide.
It’s either A or D, in my opinion I would go for D. Plants were needed to produce carbon dioxide.
EXPLANATION : Plants are really important for the planet and for all living things. Plants absorb carbon dioxide and release oxygen from their leaves, which humans and other animals need to breathe. Living things need plants to live
