When it comes to energy, saying that something is cleaner than coal means that it does not harm the environment as much as burning coal does and it is usually sustainable. The clean is the same one in the term "clean energy"
Answer:
Aquifers but since there is no answer choice I say groundwater .
Hope this helps .
How this can be prevented/can vaccines help?
What age group is at risk?
Could it be lethal?
Why does this virus happen?
Transpiration and evaporation
