Environmental Studies · Geography

Atmospheric Structure and Ozone

1,319 Questions

Atmospheric structure and ozone layer topics examine the Earth's atmospheric layers, the impact of solar radiation, and ozone depletion mechanisms. These environmental science concepts are crucial for general awareness sections in multiple competitive examinations. Review these questions to solidify your understanding of the stratosphere, polar vortex effects, and greenhouse gases.

Earth's atmospheric layersOzone layer depletionSolar ultraviolet radiationPolar vortex effectsCarbon dioxide impactOzone-depleting substances

Atmospheric Structure and Ozone Questions

Multiple choice geography temperature process of heat transfer in the atmosphere temperature and insolation sun: the ultimate source

Gases like ______ prevent the escaping radiation of heat from the earth.

  1. Carbondioxide

  2. Carbonmonoxide

  3. Nitrogen

  4. Oxygen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon dioxide is a greenhouse gas, which prevents the escaping of heat from the earth.

Greenhouse Gases. Earth's atmosphere is composed primarily of nitrogen and oxygen. These gases are transparent to incoming solar radiation. They are also transparent to outgoing infrared radiation, which means that they do not absorb or emit solar or infrared radiation.

Multiple choice biology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

In a volume of air near the earth's surface, _____________ occupies 78 percent and _____________ nearly 21 percent.

  1. Nitrogen, oxygen

  2. Hydrogen, oxygen

  3. Oxygen, hydrogen

  4. Nitrogen, water vapor
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Earth's atmosphere is composed of approximately 78 percent nitrogen and 21 percent oxygen by volume.

Multiple choice solid waste management environmental management biology

Majority of meteriorites burn and disintegrate in

  1. Mesosphere

  2. Thermosphere

  3. Stratosphere

  4. Troposphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The mesosphere is the layer of the atmosphere where most meteoroids burn up upon entry due to friction with atmospheric gases.

Multiple choice

The cycle of water is essential for life on our planet as it is related with the four layers of the earth, which are...

  1. Geosphere, atmosphere, hydrosphere and core

  2. Geosphere, biosphere, atmosphere and crust

  3. Geosphere, biosphere, atmosphere and troposphere

  4. Geosphere,atmosphere , hydrosphere and biosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The water cycle interacts with the four main spheres of the Earth: the Geosphere (land), Atmosphere (air), Hydrosphere (water), and Biosphere (living organisms).

Multiple choice geography pollution - types and sources environmental risks of economic development tundra climatic region effects and successes of environment conservation

The depletion in the Ozone layer is caused by _________.

  1. carbon dioxide

  2. nitrous oxide.

  3. methane.

  4. chlorofluorocarbons.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ozone is a protective blanket that is present in stratosphere which protects earth from harmful effects of UV radiations that are present in sun light.

Chlorofluorocarbons and other halogenated compounds cause ozone depletion.

Chlorofluorocarbons are anthropogenic and are released from air-conditioning, refrigeration, blowing agents in foams, insulation and packing materials, propellants in aerosol cans, and as solvents.

Multiple choice geography pollution - types and sources environmental risks of economic development tundra climatic region effects and successes of environment conservation

What is the harm from the depletion of Earth's ozone layer ________________.

  1. The oxygen content of the atmosphere will decrease

  2. The average temperature of earth's surface will increase gradually

  3. Sea levels will rise as the polar ice caps will gradually melt

  4. Increased amount of Ultra violet radiation will reach earth's surface
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Depletion of Earth's ozone layer results in increased amount of Ultra violet radiation will reach earth's surface

Ozone is a protective blanket that is present in stratosphere which protects earth from harmful effects of UV radiations that are present in sun light.

Chlorofluorocarbons and other halogenated compounds cause ozone depletion.

Chlorofluorocarbons are anthropogenic and are released from air-conditioning, refrigeration, blowing agents in foams, insulations and packing materials, propellants in aerosol cans, and as solvents.

Multiple choice business organisation and correspondence life is precious road safety and pollution pollution of natural resources air pollution and its effects

Exchange of incoming and outgoing radiation that keep the earth warm is known as

  1. Global warming

  2. Ozone layer depletion

  3. Green house effect

  4. Radiation effect
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.

Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

What percent of the insolation is reflected back to space by dust and clouds present in the atmosphere?

  1. 30%

  2. 35%

  3. 40%

  4. 45%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

About one third i.e 35% of the solar energy is reflected back (like a mirror reflecting light) by the Earth’s atmosphere. Further, some portion of the light is scattered and absorbed in the higher reaches of the atmosphere. In fact, some of the harmful rays of Sun like the UV rays don’t reach the ground and this has made life possible on the Earth. 

Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

What percent of the insolation is absorbed by the atmosphere?

  1. 10%

  2. 12%

  3. 17.5%

  4. 20%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The budget for solar radiation is as follows (percentage)
Reflected: 35%
Absorbed by atmosphere: 17.5%
Scattered to the Earth from the blue sky: 10.5%
Scattered to the Earth from clouds: 14.5%
Radiation going directly to Earth's surface: 22.5%
Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

Which gas can hold the heat in the atmosphere for a long time?

  1. Oxygen

  2. Nitrogen

  3. Carbon di oxide

  4. Ozone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon dioxide can hold the heat in the atmosphere for a long time. It constitutes only 0.03 percent of the dry air. Being an effective absorber of heat from the upper atmosphere as well as the earth, carbon dioxide is considered to be of great climatic significance. This gas emits about half of the absorbed heat back to the earth.

Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

Ozone layer protects the earth from ____________.

  1. X-rays

  2. Infra-red rays

  3. Cosmic rays

  4. Ultra-violet rays
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The ozone layer blocks the harmful ultra-violet rays coming from the sun and prevents it from reaching the earth's surface thus play an extremely important role. However it cannot block x-rays, infrared rays or cosmic rays. Hence option D is correct.
  • The ozone layer is found in the lower stratosphere 
Multiple choice geography environmental changes elements of weather and climate : temperature process of heat transfer in the atmosphere environmental regions (zones)

In which layer of the atmosphere, ozone layer is present?

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

  4. Thermosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
stratosphere
The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically.
Multiple choice geography human activities and environmental degradation study of water pollution threats to water resource major hazards in india and prevention

Ozone layer depletion is due to ________.

  1. air pollution

  2. water pollution

  3. soil pollution

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The ozone layer plays a important role in protecting humans and other living organisms from the harmful UV rays of the sun. The ozone layer is present in the stratosphere, and is now depleted due to air pollution which leads to global warming.

Multiple choice evs weather, climate and adaptation of animals to different climates climate and weather weather, climate and adaptations of animals to climate atmosphere and its components

Almost all of the earth's weather occurs in the:

  1. Exosphere

  2. Stratosphere

  3. Mesosphere

  4. Troposphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The troposphere is the lowest layer of the atmosphere where most clouds form and weather phenomena occur. It contains the vast majority of the atmosphere's water vapor.