Which term refers to energy that is often criticized for environmental harm due to extraction and emissions?

• A. Oil Sands
• B. Biomass Energy
• C. Coal
• D. Tidal Energy

Answer: (C)

The idea being tested is how the environmental harm of an energy source is tied to both how it’s extracted and what happens when it’s used. Coal fits this idea best because it’s widely criticized for two serious problems. First, the extraction of coal—such as mining and removal of large tracts of land—disrupts ecosystems, can pollute water, and create long-lasting habitat damage. Second, burning coal releases large amounts of carbon dioxide along with other pollutants like sulfur dioxide, nitrogen oxides, and particulates, contributing to climate change and air quality issues. This combination of extractive damage and high emissions makes coal the most commonly cited example of energy with significant environmental harm.

Oil sands do raise environmental concerns due to heavy emissions and land disturbance, but the general association of coal with both high emissions per unit of energy and substantial extraction impacts makes it the more notable example. Biomass energy is often considered renewable, and tidal energy is typically low-emission, so they don’t carry the same widely recognized harm profile as coal when discussing extraction and emissions.