Explain the role of the ozone layer in sustaining life on Earth.
  • Components of air, like carbon dioxide, can be considered pollutants when human activity causes their concentration to be larger than normal. At higher concentrations, naturally occurring gases can have undesirable consequences on the environment. High levels of carbon dioxide can cause an increase in Earth's temperatur
  • The ozone layer helps regulate the Earth's temperature by absorbing a large percentage of the UV radiation entering the atmosphere. This protects living organisms from exposure to large amounts of UV radiation, maintains livable climates, and regulates the amount of harmful ground-level ozone.
  • the stratosphere
  • oth ground-level ozone and depletion of the ozone layer cause environmental and health concerns. Ground-level ozone is a pollutant that is harmful to organisms when it is breathed in. Ozone in the troposphere can also cause an increase in surface temperatures. Depletion of ozone in the stratosphere causes health and environmental risks indirectly. Since ozone absorbs UV radiation, having less ozone in the stratosphere means more UV radiation will reach the troposphere. This causes greater risk of skin cancer and cataracts. Changes to global climate and harmful effects to plant life are also concerns.
Explain why components that are naturally found in air can be considered air pollutants.
  • teenagers
  • d. both a and c
  • The ozone layer helps regulate the Earth's temperature by absorbing a large percentage of the UV radiation entering the atmosphere. This protects living organisms from exposure to large amounts of UV radiation, maintains livable climates, and regulates the amount of harmful ground-level ozone.
  • Components of air, like carbon dioxide, can be considered pollutants when human activity causes their concentration to be larger than normal. At higher concentrations, naturally occurring gases can have undesirable consequences on the environment. High levels of carbon dioxide can cause an increase in Earth's temperatur
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