Question
Question: One of the possible early sources of energy was / were:...
One of the possible early sources of energy was / were:
A
Chlorophyll
B
Green plants
C
Carbon dioxide
D
UV rays and lightening
Answer
UV rays and lightening
One of the possible early sources of energy was / were:
Chlorophyll
Green plants
Carbon dioxide
UV rays and lightening
UV rays and lightening