HCFCs Have Been Developed to Replace CFCs as Refrigerants

question 33

Multiple Choice

HCFCs have been developed to replace CFCs as refrigerants.Which property of these new compounds makes them environmentally superior to CFCs?

• A)Greater reactivity leads to decomposition at elevations below the stratospheric ozone concentration maximum
• B)Lower reactivity makes them stable even in the intense ultraviolet light in the stratosphere
• C)Their higher molecular weight prevents them from reaching the stratosphere
• D)They do not contain chlorine

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Definitions:

Rods and Cones

Photoreceptor cells in the retina responsible for vision; rods detect light and dark changes, while cones perceive color.

Bipolar Cells

A type of neuron found in the eye's retina, transferring signals from photoreceptor cells to ganglion cells.

Optic Nerve

The nerve responsible for carrying visual data from the retina to the brain.

Curvature

The measure of how sharply a curve bends or changes direction.