Tag: geography

Questions Related to geography

Which one of the following is not responsible for the greenhouse effect?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Carbon dioxide

  2. Methane

  3. Argon

  4. Chlorofuorocarbon

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Correct Option: C
Explanation:

Argon :-


The major greenhouse gases (GHG’s) solely responsible for greenhouse effect are Carbon dioxide, Ozone, Methane and Water vapor. Although these gases comprise 1% of our atmosphere, they act like a thick warm blanket outside that surrounds this planet and regulate climate control. Greenhouse effect is not bad. In fact, it is needed for all of us to survive on planet Earth. In short, the greenhouse effect is nothing but a naturally occurring process designed by nature that aids in heating earth’s surface and helps to maintain ecological balance.

Now, while some of that heat dissipates into space, some of it burns along the atmosphere, and some of it penetrates the atmosphere and finds its way into the lower atmosphere and the planet’s surface. This in turn raises the average temperature of the Earth. Therefore, the increase in the Earth’s surface temperature due to increase in the number of greenhouse gases leads to global warming.

Which one of the following is not a cause of environmental pollution?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Population

  2. Industrialization

  3. Afforestation

  4. Vehicles

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Correct Option: C
Explanation:

The process of converting a non-forest land into a forest is known as Afforestation. Afforestation is highly important to maintain the biodiversity. Afforestation is necessary to combat the issues of global warming, soil erosion, pollution, and the maintenance of biodiversity and ecological balances. Afforestation is not a cause of environmental pollution.

Population, Industrialization and vehicles are the major causes of environmental pollution.

_____ is one of the methods to conserve forests.

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Deforestation

  2. Afforestation

  3. Plantation

  4. None of these

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Correct Option: B

The ozone layer absorbs __________ and protects the living beings of the earth. 

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. water vapour

  2. light

  3. infrared rays

  4. ultraviolet rays

Show answer
Correct Option: D
Explanation:

The ozone layer basically absorbs harmful emissions from the sun like the ultraviolet rays, which is why life on earth is able to thrive. No other planet known to man has conditions that can favor life, and without the ozone layer, Earth would also become unable to support life. Below are some things that would happen if the ozone layer was damaged to any extent.

Cancer: one of the things that would be frequently experienced by human beings on Earth is skin cancer. Since the layer would not be able to effectively block UV rays, human skin would most likely be endangered.

Cataracts: this refers to a condition where human vision goes blurred. Almost all human beings on earth would have some sort of visual impairment without the ozone layer.

Which day is celebrated as World Ozone Day?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. 16th May

  2. 16th August

  3. 16th September

  4. 16th November

Show answer
Correct Option: C
Explanation:
September 16th
This special day is held on September 16th to mark the day back in 1987 when the Montreal Protocol was signed. As a result, a number of special events such as talks and seminars are held in the Canadian city of Montreal on this day.

World Ozone Day has been celebrated since 1994 and was established by the United Nations General Assembly. The day is mainly intended to spread awareness of the depletion of the Ozone Layer and search for solutions to preserve it. People from all over the world are expected to gather in Montreal on September 16th to join the talks and seminars.

World Ozone Day is also celebrated all around the world. Educators usually set aside this day to teach their students about the Ozone layer and many schools organize special events and activities to raise awareness. This is one event that everyone can experience and enjoy together.

In which year the first ozone hole was discovered?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. 1980

  2. 1983

  3. 1985

  4. 1990

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Correct Option: C
Explanation:
1985
The discovery of the Antarctic "ozone hole" by British Antarctic Survey scientists Farman, Gardiner and Shanklin (first reported in a paper in Nature in May 1985) came as a shock to the scientific community, because the observed decline in polar ozone was far larger than anyone had anticipated.

Which gas is responsible for the depletion of ozone layer?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Carbon dI oxide

  2. Methane

  3. Cluroflorocarbon

  4. Sulphur di oxide

Show answer
Correct Option: C
Explanation:
Chlorofluorocarbons (CFCs
Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).

Noise pollution can cause _____.

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Hypertension

  2. High stress level

  3. Hearing loss

  4. Sleep disturbances etc

  5. All of these

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Correct Option: E

Pollution due to biomedical waste is likely to spread _____ dangerous to life.

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Mosquitoes

  2. Flies

  3. Diseases

  4. Pungent smell

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Correct Option: C

Montreal Protocol is related to which of the following?

geography environmental changes atmosphere as a green house global warming and climate change energy from the sun

  1. Global Warming

  2. Deforestation

  3. Ozone layer depletion

  4. Sustainable development

Show answer
Correct Option: C
Explanation:

Ozone layer depletion,

Montreal Protocol, formally Montreal Protocol on Substances That Deplete the Ozone Layer, international treaty, adopted in Montreal on Sept. 16, 1987, that aimed to regulate the production and use of chemicals that contribute to the depletion of Earth’s ozone layer. Initially signed by 46 countries, the treaty now has nearly 200 signatories.

In the early 1970s, American chemists F. Sherwood Rowland and Mario Molina theorized that chlorofluorocarbon (CFC) compounds combine with solar radiation and decompose in the stratosphere, releasing atoms of chlorine and chlorine monoxide that are individually able to destroy large numbers of ozone molecules. (Along with Dutch chemist Paul Crutzen, Rowland and Molina were awarded the 1995 Nobel Prize for Chemistry for this work.) Their research, first published in the journal Nature in 1974, initiated a federal investigation of the problem in the United States, and the National Academy of Sciences concurred with their findings in 1976. In 1978 CFC-based aerosols were banned in the United States, Norway, Sweden, and Canada.

Further validation of their work came in 1985 with the discovery of a “hole” in the ozone shield over Antarctica by the British Antarctic Survey and the publication of its findings in Nature. Shortly before these findings were to appear, representatives from 28 countries met to discuss the issue at the Vienna Convention for the Protection of the Ozone Layer. The meeting called for international cooperation in research involving ozone-depleting chemicals (ODCs) and empowered the United Nations Environment Programme (UNEP) to lay the groundwork for the Montreal Protocol.

The initial agreement was designed to reduce the production and consumption of several types of CFCs and halons to 80 percent of 1986 levels by 1994 and 50 percent of 1986 levels by 1999. The protocol went into effect on Jan. 1, 1989. Since then the agreement has been amended to further reduce and completely phase out CFCs and halons, as well as the manufacture and use of carbon tetrachloride, trichloroethane, hydrofluorocarbons (HFCs), hydrochlorofluorocarbons (HCFCs), hydrobromofluorocarbons (HBFCs), methyl bromide, and other ODCs. Several subsequent meetings of the signing countries were convened to track overall progress toward this goal and to authorize new changes to the process of phasing out ODCs.