Ozone is produced naturally in the stratosphere. But this "good" ozone is gradually being destroyed by man-made chemicals referred to as ozone-depleting substances (ODS), including chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, and methyl chloroform. These substances were formerly used and sometimes still are used in coolants, foaming agents, fire extinguishers, solvents, pesticides, and aerosol propellants. Once released into the air these ozone-depleting substances degrade very slowly. In fact, they can remain intact for years as they move through the troposphere until they reach the stratosphere. There they are broken down by the intensity of the sun's UV rays and release chlorine and bromine molecules, which destroy the "good" ozone. Scientists estimate that one chlorine atom can destroy 100,000 "good" ozone molecules.
Answer:
Hey there,
The answer is actually D) The cost to global systems as carbon emissions increase from fossil fuel combustion, leading to climate changes.
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Explanation:
Answer:
one that is saturated
Explanation:
<em>Unsaturated fat turns to liquid at room temperature. Saturated fat has do not have double bonds in their molecular structure.</em>
For an offspring to dominate a recessive trait, both parents must have at least one dominant allele in their genotype.
Answer:
Cercopithecine Herpes virus-1 (B-virus)
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