what is ozone ? how is the troposphere is a bad Ozone and stratosphere is a good Ozone ? what is its significance in the upper atmosphere - stratosphere ? class 10
Answers
Ozone is both good news and bad news! Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the troposphere, closer to Earth’s surface, is a pollutant and
Ozone is both good news and bad news! Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the troposphere, closer to Earth’s surface, is a pollutant and hazardous to our health.
In the stratosphere, the concentration of ozone about 25 km (15 miles) above the Earth's surface is usually less than ten parts per million (ppm). This means that for every million molecules of air, only ten molecules are ozone. Even though ozone exists in minute quantities, it is vital for life on Earth. The ozone layer filters out ultraviolet radiation from the Sun, while allowing other wavelengths of light to travel through the atmosphere.
Ozone the troposphere occurs naturally in very small amounts - about 10 to 30 parts per billion (ppb). This means that for every billion molecules of air, only 10 to 30 molecules are natural ozone. However, most of the ozone in the troposphere is from pollution. Complex chemical reactions between sunlight and pollutants emitted by motor vehicles and industry create ozone in the troposphere.
According to the U.S. Environmental Protection Agency, ozone levels over 70 ppb pose a high danger to human health, although no amount of ozone is safe to breathe. Breathing ozone into your lungs causes damage to the lung tissue and narrows the passages that let air in and out of the lungs. Plants are also damaged by ozone in the troposphere and items such as rubber and nylon break down in the presence of ozone. In the troposphere, ozone also acts as a potent greenhouse gas.
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Answer:
Ans 1. Ozone is a molecule formed by three atoms of oxygen. Oxygen is essential for all life processes whereas ozone is a deadly poison. At the higher levels of the atmosphere, it shields the surface of the earth from ultraviolet radiation of the sun which is highly dangerous to organisms as it can cause skin cancer.
Ans 2. Ozone is both good news and bad news! Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the troposphere, closer to Earth's surface, is a pollutant and hazardous to our health.
Unlike stratospheric ozone, which forms naturally in the upper atmosphere and protects us from the sun's harmful ultraviolet rays, ground-level (or tropospheric) ozone is created through the interactions of man-made (and natural) emissions of volatile organic compounds and nitrogen oxides in the presence of heat.
Ans 3. The stratosphere is where you'll find the very important ozone layer. The ozone layer helps protect us from ultraviolet radiation (UV) from the sun. In fact, the ozone layer absorbs most of the UV radiation the sun sends to us. Life as we know it wouldn't be possible without this layer of protection.
Explanation:
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