Tag: causes of resource depletion

Questions Related to causes of resource depletion

Nitrogen oxides released in the stratosphere cause ozone depletion due to

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Catalysing conversion of ozone to oxygen

  2. Binding ozone

  3. Reacting with ozone

  4. All of the above

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Correct Option: C
Explanation:
Nitrogen oxide which causes ozone depletion is Nitrous oxide. It is similar to CFCs in that it is stable when it is released in the troposphere but when it reaches stratosphere, it releases ozone depleting substances which react with ozone and cause its degradation through nitrogen-oxide catalysed reaction.
So, the correct answer is 'Reacting with ozone'. 

$O _3$ in ozone layer is formed by action of

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. IR radiation

  2. Blue radiation

  3. UV radiation

  4. Other radiations

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Correct Option: C
Explanation:
Ozone molecule (O3) is formed in the stratosphere in presence of UV radiations.
The first step is the breaking of an oxygen molecule into two oxygen atoms by UV radiation:
                                       UV
                             O3---------------> O + O
The Oxygen atoms then combine with oxygen molecule to form a molecule of ozone:
                           O2 + O -----------------> O3
So, the correct answer is 'UV radiation'.

Depletion of the Ozone layer in the stratosphere is caused by.

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Carbon monoxide

  2. Hydrocarbons

  3. Nitrogen dioxide

  4. Polychloro-biphenyls

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Correct Option: A

Multiple Choice Questions
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers.

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Methane

  2. Nitrous oxide

  3. Ozone

  4. Ammonia

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Correct Option: C
Explanation:

Ozone is a triatomic gas that forms a shield or layer in the stratosphere region of atmosphere. This layer protects the living beings from harmful effects of UV-B rays of 280-320 nm. Depletion of the ozone layer can lead to an increased incidence of skin cancer.

So the correct  option is 'ozone'.

Strong is caused by the _______________.

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Depletion of ozone layer

  2. Presence of high humidity in the atmosphere

  3. Rapid accumulation of $CO _2$ in the atmosphere

  4. Rapid build-up of products of photochemical oxidation of pollutants in the atmosphere

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Correct Option: A

Ozone layer depletion is caused by

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. AFC's

  2. BFC's

  3. CFC's

  4. DFC's

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Correct Option: C

Melanornia (skin cancer) is associated with

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. ozone accumulation

  2. ozone depletion

  3. acid rain

  4. allergens

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Correct Option: B

What does high flying crafts deplete?

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Atmosphere

  2. Ozone Layer

  3. Biosphere

  4. Hydrosphere

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Correct Option: B

What does a single chlorine free radical destroy?

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. Ultraviolet radiations

  2. Atmosphere

  3. Biosphere

  4. Ozone layer

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Correct Option: D

Depletion of ozone layer published in scientific journals, in

commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

  1. 1950s

  2. 1990s

  3. 1970s

  4. 1980s

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Correct Option: D