why was ozone lawyer thinner out with xhemicals we used to put online

by Humberto Bergstrom 4 min read

What is ozone good at trapping?

Ozone is good at trapping a type of radiation called ultraviolet radiation, or UV light, which can penetrate organisms’ protective layers, like skin, damaging DNA molecules in plants and animals. There are two major types of UV light: UVB and UVA.

Can CFCs destroy ozone molecules?

Ozone molecules, which are simply made of three joined oxygen atoms, are always being destroyed and reformed naturally. But CFCs in the air make it very difficult for ozone to reform once it’s broken apart.

What is the function of ozone?

Ozone is only a trace gas in the atmosphere—only about 3 molecule s for every 10 million molecules of air. But it does a very important job. Like a sponge, the ozone layer absorbs bits of radiation hitting Earth from the sun. Even though we need some of the sun's radiation to live, too much of it can damage living things.

What are “ozone holes?

“Ozone holes” are popular names for areas of damage to the ozone layer. This is inaccurate. Ozone layer damage is more like a really thin patch than a hole. The ozone layer is thinnest near the poles.

Why has the ozone layer been thinning?

Scientists also discovered that the thinning in the ozone layer was caused by increasing concentrations of ozone-depleting chemicals – chlorofluorocarbons or CFCs (compounds with chlorine and/or fluorine attached to carbon) and to a lesser extent halons (similar compounds with bromine or iodine).

Why is the ozone layer getting thinner and thinner?

The ozone layer is getting thinner. Chemicals called chlorofluorocarbons (CFCs) are a reason we have a thinning ozone layer. A chlorofluorocarbon (CFC) is a molecule that contains the elements carbon, chlorine, and fluorine. CFCs are everywhere, mostly in refrigerants and plastic products.

What chemicals cause the ozone layer to thin?

These compounds contribute to ozone depletion, and are called ozone-depleting substances ( ODS. ODS include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, hydrobromofluorocarbons, chlorobromomethane, and methyl chloroform.

What was the cause of thinning of ozone layer and what action was taken to reduce this effect?

Chlorofluorocarbons or CFCs are the main cause of ozone layer depletion. These are released by solvents, spray aerosols, refrigerators, air-conditioners, etc. The molecules of chlorofluorocarbons in the stratosphere are broken down by ultraviolet radiations and release chlorine atoms.

Where is ozone layer thinnest?

the polesThe thickness of the ozone layer varies worldwide and is generally thinner near the equator and thicker near the poles.

Is the ozone layer still thinning?

A team of scientists measured the total amount of ozone in the atmosphere and found that the overall concentration is about the same as it's been, despite a measured boost in the upper layer. That discovery led the team to surmise that the lower level of the ozone layer is still getting thinner.

How did CFCs destroy the ozone layer?

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.

How does nitrogen oxide destroy ozone layer write with chemical equation?

NO + O3 <---> NO2 + O2 90% of the earth's atmospheric ozone is contained in the stratosphere, which explains why this equilibrium reaction tends towards the destruction of ozone rather than its production.

What happened to the ozone layer?

Scientists accept that the depletion in the ozone layer is caused by human-made gases called CFCs, which were first developed in the 1930s for use in refrigeration systems and were then deployed as propellants in aerosol spray cans. The chemicals are stable so can travel from the Earth's surface to the stratosphere.

Why is the damage to ozone layer a cause for concern What steps are being taken to limit this damage?

The depletion of ozone causes the harmful UV rays to reach the earth and this has resulted in increased incidence of skin cancers in humans. UV rays may also cause genetic mutations in living organisms. To limit the damage to the ozone layer, the release of CFCs into the atmosphere must be reduced.

What is the main reason for ozone depletion Mcq?

Manufactured chemicals, precisely manufactured halocarbon solvents, refrigerants, foam-blowing agents, and propellants are the ozone-depleting substances or ODS, known to be the main cause of depletion of the ozone layer.

What depletes the ozone layer and what are the health effects of ozone layer depletion?

Ozone depletion can cause increased amounts of UV radiation to reach the Earth which can lead to more cases of skin cancer, cataracts, and impaired immune systems. Too much exposure to UV is believed to be contributing to the increase in melanoma, the most fatal of all skin cancers.