Question

timed test
an engineer analyzes three years of data about one countrys consumption of renewable energy sources.
renewable energy consumption: 3 years
key year 1 year 2 year 3
which renewable energy sources showed no change in energy consumption from year 2 to year 3?
a biodiesel, ethanol, geothermal, and wood biomass
b biodiesel and hydroelectric power
c ethanol and geothermal only
d solar, waste biomass, and wind

Explanation:

Step1: Analyze each energy source

Check the height of the purple (Year 2) and yellow (Year 3) bars for each renewable energy source.

• Biodiesel: The height of the purple and yellow bars is the same.
• Ethanol: The height of the purple and yellow bars is the same.
• Geothermal: The height of the purple and yellow bars is the same.
• Hydroelectric power: The height of the purple and yellow bars is the same.
• Solar: The height of the purple and yellow bars is the same.
• Waste biomass: The height of the purple and yellow bars is the same.
• Wind: The height of the purple and yellow bars is different (Year 3 is higher than Year 2).
• Wood biomass: The height of the purple and yellow bars is the same.

Answer:

A. Biodiesel, ethanol, geothermal, and wood biomass