For what environmental issue are cfcs blamed?

Asked by: Prof. Omari Powlowski II
Score: 4.4/5 (7 votes)

Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

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Also asked, For what environmental issues are CFCs blamed quizlet?

CFCs destroy ozone in the stratosphere, allowing UV radiation to reach Earth.

Moreover, What's true of chlorofluorocarbons CFCs )?. Which of the following is true of chlorofluorocarbons? Answers: The CFC molecules react with ultraviolet light to release chlorine which then destroys ozone. The CFC molecules react with ultraviolet light to release fluorine which then destroys ozone.

Simply so, How do Chlorofluorocarbons CFCs contribute to ozone depletion?

Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules. ... When sunlight returns in the spring, the chlorine begins to destroy ozone.

What is true about protecting groundwater?

What's true about protecting groundwater? Many regulations are in place. No regulations are in place. ... Groundwater does not need to be protected.

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What is the purpose of an environmental impact statement?

Environmental Impact Statements (EIS) Federal agencies prepare an Environmental Impact Statement (EIS) if a proposed major federal action is determined to significantly affect the quality of the human environment.

How do you increase underground water level?

Top 10 List
  1. Go Native. Use native plants in your landscape. ...
  2. Reduce Chemical Use. Use fewer chemicals around your home and yard, and make sure to dispose of them properly - don't dump them on the ground!
  3. Manage Waste. ...
  4. Don't Let It Run. ...
  5. Fix the Drip. ...
  6. Wash Smarter. ...
  7. Water Wisely. ...
  8. Reduce, Reuse, and Recycle.

How can we reduce CFCs?

Buy air-conditioning and refrigeration equipment that do not use HCFCs as refrigerant. Buy aerosol products that do not use HCFCs or CFCs as propellants. Conduct regular inspection and maintenance of air-conditioning and refrigeration appliances to prevent and minimize refrigerant leakage.

How is good stratospheric ozone formed?

Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen (O2). The "ozone layer," approximately 6 through 30 miles above the Earth's surface, reduces the amount of harmful UV radiation reaching the Earth's surface.

What is ozone layer depletion and its effects?

Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders. ... UV rays also affect plant growth, reducing agricultural productivity.

Why are CFCs harmful?

Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

Are CFCs still used?

Production of CFCs ceased in 1995. HCFC production will cease in 2020 (HCFC-22) or 2030 (HCFC-123). This means that although equipment that uses these refrigerants may operate just fine for 20 or 30 years, new or recycled refrigerant to service it may not be available.

What are chlorofluorocarbons used for?

Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.

Why is asbestos an environmental issue quizlet?

Asbestos is highly friable, meaning that as it ages, asbestos fibers break down easily into tiny filaments and particles. This makes asbestos especially harmful when it is disturbed or exposed and becomes airborne, as often occurs during renovation or remodeling.

Why is the Montreal Protocol a success?

The Montreal Protocol has been successful in reducing ozone-depleting substances and reactive chlorine and bromine in the stratosphere. ... This is because once released, ozone-depleting substances stay in the atmosphere for many years and continue to cause damage.

Who is most vulnerable to lead poisoning and its effects?

Children who live in households at or below the federal poverty level and those who live in housing built before 1978 are at the greatest risk of lead exposure.

Is ozone good or bad?

Ozone can be “good” or “bad” for health and the environment depending on where it's found in the atmosphere. Stratospheric ozone is “good” because it protects living things from ultraviolet radiation from the sun.

What are the two types of ozone?

Ozone or “O3” is a colorless gas composed of three atoms of oxygen (O3). There are two types of ozone, both “good” ozone and “bad” ozone.

How bad is ozone for you?

Whether in its pure form or mixed with other chemicals, ozone can be harmful to health. When inhaled, ozone can damage the lungs. Relatively low amounts of ozone can cause chest pain, coughing, shortness of breath and, throat irritation.

How can we protect our ozone layer?

How can we protect the ozone layer?
  1. Avoid the consumption of gases dangerous to the ozone layer, due to their content or manufacturing process. ...
  2. Minimize the use of cars. ...
  3. Do not use cleaning products that are harmful to the environment and to us. ...
  4. Buy local products.

How do we prevent global warming?

10 Ways to Stop Global Warming
  1. Change a light. Replacing one regular light bulb with a compact fluorescent light bulb will save 150 pounds of carbon dioxide a year.
  2. Drive less. ...
  3. Recycle more. ...
  4. Check your tires. ...
  5. Use less hot water. ...
  6. Avoid products with a lot of packaging. ...
  7. Adjust your thermostat. ...
  8. Plant a tree.

What is the main reason for ozone depletion?

Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below).

How can I increase my water level?

By increasing rain water conditions ( more plantations, protection of watersheds and others) and water conservation. Recharge ground water by increasing rainwater harvesting and infiltration capacity.

Which trees increase ground water level?

The below are the plants it has good root system and can able to increase ground water level.
  • Thespesia Populnea.
  • Margosa tree [Neem tree]
  • Banyan Tree.

Does rain increase ground water level?

“In north Karnataka and other rural areas, water levels have gone up because of the rains. There, people stop using borewells during the monsoons, and there is time and surface area for water to percolate and recharge. ... Because of this, water levels will not rise as much as we expect,” an official said.