Tag: issues of the environment

Quizzes (9) Questions (171)

Questions Related to issues of the environment

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

The sea breeze is caused due to the low pressure generated over

  1. Land

  2. Sea

  3. Air

  4. Both A and B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During, the daytime when the air above the land gets heated up, the air molecules absorbs the heat and the intermolecular forces between the air molecules become weak and its kinetic energy increases. The air molecules move apart and become less dense and they become lighter and rises up. This creates a low-pressure zone on land and thus cold air from the sea rushes from sea to land and thus creates sea breeze.

So, the correct answer is option B.

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:

  1. Decrease as the air becomes drier

  2. Decrease as the air becomes moister

  3. Increase as the air becomes drier

  4. Increase as the air becomes moister
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

As the air cools further during the night, water vapor condenses out of the air to form fog. This removal of water vapor decreases the dew point temperature.

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

Where are the days and nights of equal length all year long?

  1. At $66.5^{o}$

  2. Nowhere
  3. At $23.5^{o}$

  4. At the Equator
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Equator receives approximately equal day and night lengths throughout the year because it is positioned such that the sun's path remains consistent relative to the horizon.

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

Typically, water vapor occupies about what percentage of the air's volume near the earth's surface?

  1. About 78 percent

  2. About 21 percent

  3. Close to 10 percent

  4. Less than 4 percent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water vapor is a variable gas in the atmosphere, typically ranging from 0 to 4 percent by volume depending on temperature and location. It is most concentrated near the surface in tropical regions.

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

At which latitude heat gain through insolation approximately equals heat loss through terrestrial radiation:

  1. $22.5^0$ North and South
  2. $40^0$ North and South
  3. $42.5^0$ North and South
  4. $66^0$ North and South
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Heat gain from solar insolation approximately balances heat loss from terrestrial radiation around the 40 degree latitude lines in both the Northern and Southern Hemispheres. Lower latitudes receive a net surplus of energy, while higher latitudes experience a net deficit.

Multiple choice commercial applications issues of the environment excessive consumption of resources atmosphere and its components atmosphere- wind

If climate change keeps on disrupting atmospheric pressure, it would bring ice age in

  1. America

  2. Northern Europe

  3. Africa

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

Disruption of the North Atlantic Current, often linked to climate change, could lead to a significant cooling effect in Northern Europe. This is a common hypothesis regarding the impact of melting Arctic ice on ocean circulation.

Multiple choice business organisation and correspondence issues of the environment international efforts for conserving biodiversity effects of pollution on environment government efforts in pollution control

'The Environment Protection Act' was passed in

  1. 1968

  2. 1974

  3. 1981

  4. 1986
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

'The Environmental protection Act', 1986, is the most comprehensive law meant for prevention and control of environmental pollution by laying down emission norms and setting up of central and state pollution control boards.

Multiple choice business organisation and correspondence issues of the environment international efforts for conserving biodiversity effects of pollution on environment government efforts in pollution control

Consider the following statements.
A. By the end of twentieth century, the forest cover in India was reduced to 19.4 percent.
B. National Forest Policy was implemented in the year 1988.
C. The average annual production of dry grass or hay in India is about 250 million tons.
D. About 10% of the world's population lives in arid or semi arid regions.
Of these statements which of the following is true?

  1. A and B are true

  2. A, C and D are not true

  3. A, B and C are true

  4. C is not true

  5. C and D are true
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In India about 20 percent of land is under forest cover. The amount was 30 percent at the beginning of 20th century. The present forest cover of roughly 20 percent is quite small as compared to optimum of 33 percent according to 'National Forest Policy' (1988). It recommends 67 percent forest cover in hills. In India hay availability is roughly 250 million tonnes. 

Multiple choice business organisation and correspondence issues of the environment international efforts for conserving biodiversity effects of pollution on environment government efforts in pollution control

Which of the following is the measures for controlling carbon dioxide levels in the atmosphere?

  1. Plant more trees

  2. Use of CNG or clean fuel

  3. Treatment of smoke before discharging into atmosphere

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Measures for controlling carbon dioxide levels in the atmosphere:

  • Plant more trees or afforestation as plants absorb carbon dioxide for photosynthesis.
  • Use of CNG or clean fuel as it releases less amount of pollutants and carbon dioxide
  • Treatment of smoke to remove harmful gasses before discharging into atmospheric.
  • Stoppage of burning fossil fuels.
Thus, the correct answer is option D.