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Which of the following are the likely effects of ozone layer depletion?
1. Increased evaporation of surface water
2. Increased moisture content of the soil
3. Damage of building paints
Select the correct answer using the code given below.
- a)1 and 2 only
- b)1 and 3 only
- c)2 and 3 only
- d)1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following are the likely effects of ozone layer depletio...
The correct answer is 1 and 3 only.
Key-Points
Effects of Depletion of the Ozone Layer
- UV radiation has been linked to the development of cataracts, a clouding of the eye’s lens.
- With the depletion of the ozone layer, more UV radiation filters into the troposphere. UV radiations lead to ageing of the skin, cataracts, sunburn, skin cancer, the killing of many phytoplankton, damage to fish productivity, etc.
- It has also been reported that plant proteins get easily affected by UV radiation which leads to the harmful mutation of cells.
- It also increases the evaporation of surface water through the stomata of the leaves and decreases the moisture content of the soil. Hence, Statement 1 is correct and Statement 2 is NOT correct.
- An increase in UV radiations damage paints and fibres, causing them to fade. Hence, Statement 3 is correct.
- Increases in UV radiation could affect terrestrial and aquatic biogeochemical cycles, thus altering both sources and sinks of greenhouse and chemically important trace gases (e.g., carbon dioxide, carbon monoxide, carbonyl sulfide, ozone, and possibly other gases).
- These potential changes would contribute to biosphere-atmosphere feedbacks that mitigate or amplify the atmospheric concentrations of these gases.
- Synthetic polymers, naturally occurring biopolymers, as well as some other materials of commercial interest are adversely affected by UV radiation
Additional Information
- The upper stratosphere consists of a considerable amount of ozone (O3), which protects us from the harmful ultraviolet (UV) radiations (λ 255 nm) coming from the sun.
- These radiations cause skin cancer (melanoma) in humans.
- Therefore, it is important to maintain the ozone shield.
- Ozone in the stratosphere is a product of UV radiations acting on dioxygen (O2) molecules.
- The UV radiations split apart molecular oxygen into free oxygen (O) atoms.
- These oxygen atoms combine with molecular oxygen to form ozone.
- The stratosphere is a layer of Earth's atmosphere.
- It is the second layer of the atmosphere as you go upward.
- The troposphere, the lowest layer, is right below the stratosphere.
- The next higher layer above the stratosphere is the mesosphere.
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Which of the following are the likely effects of ozone layer depletio...
Effects of Ozone Layer Depletion:
1. Increased evaporation of surface water:
Ozone depletion allows more ultraviolet radiation to reach the Earth’s surface, which leads to an increase in temperature. This increase in temperature can cause an increase in the rate of evaporation of surface water.
2. Damage of building paints:
Ozone depletion can lead to an increase in the amount of ultraviolet radiation that reaches the Earth’s surface. This increase in ultraviolet radiation can cause damage to building paints, leading to fading and cracking.
3. No effect on the moisture content of the soil:
Ozone layer depletion is not likely to have any direct effect on the moisture content of the soil.
Therefore, the correct answer is option B, i.e., 1 and 3 only.
1. Increased evaporation of surface water:
Ozone depletion allows more ultraviolet radiation to reach the Earth’s surface, which leads to an increase in temperature. This increase in temperature can cause an increase in the rate of evaporation of surface water.
2. Damage of building paints:
Ozone depletion can lead to an increase in the amount of ultraviolet radiation that reaches the Earth’s surface. This increase in ultraviolet radiation can cause damage to building paints, leading to fading and cracking.
3. No effect on the moisture content of the soil:
Ozone layer depletion is not likely to have any direct effect on the moisture content of the soil.
Therefore, the correct answer is option B, i.e., 1 and 3 only.
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Which of the following are the likely effects of ozone layer depletion?1. Increased evaporation of surface water2. Increased moisture content of the soil3. Damage of building paintsSelect the correct answer using the code given below.a)1 and 2 onlyb)1 and 3 onlyc)2 and 3 onlyd)1, 2 and 3Correct answer is option 'B'. Can you explain this answer?
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