Question

Review the table of energy use versus water resources below.

Energy Type
Coal, oil, natural
gas, nuclear
Energy Use Vs. Water Resources
Purpose
Coal, oil, natural
gas, nuclear
Bioenergy
Solar and wind
Hydropower
Once-through system
Closed-cycle system
O Solar and wind
O Hydropower
Used for irrigation
Water used once to clean solar
panels in certain locations
For directly generating
electricity and power
O Coal (once-through)
Water waste
Not recycled
Recycled and
reused
Not recycled
According to the data, which energy source uses water least efficiently?
O Bioenergy
Not recycled
Recycled and
reused

Answer 1

Coal (once thru)

Step-by-step explanation:

My best guess is coal.

You can immediately eliminate hydropower.

It's not solar/wind they're some of the most efficient.

but this is where it gets tricky because it depends on the region whether more water is used for bio or coal. Also, you have to consider if they're counting renewable biofuels in bioenergy, but since they specify it as irrigation, I would eliminate this answer as well.

This leaves Coal, oil, natural

gas, nuclear (once through) as the best answer.