When Home Depot Switched Its In-Store Light Fixture Displays to Compact

question 138

Multiple Choice

When Home Depot switched its in-store light fixture displays to compact fluorescent light and LED bulbs, painted the roofs of its stores white, and installed solar panels, it reduced its energy use by ________ percent.

• A) 5
• B) 10
• C) 15
• D) 20
• E) 25

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Definitions:

Radioactive Decay

The process by which an unstable atomic nucleus loses energy by emitting radiation.

Heat

The transfer of thermal energy from high-temperature to low-temperature objects.

Earth's Crust

The outermost layer of the Earth, consisting of solid rocks, and is subdivided into the continental and oceanic crust.

Surface Environments

The various natural settings on the Earth's exterior, including oceans, forests, deserts, and glaciers, where unique geological processes can occur.