Tag: water and ocean conservation

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Questions Related to water and ocean conservation

Multiple choice commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Why do we celebrate water day every year?

  1. We celebrate water day every year to attract the attention of everybody towards the importance of conserving water.

  2. It is a tradition.

  3. It is for commercial purposes.

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
World water day is celebrated every year on 22nd March. Water is essential for life on earth. The water available for consumption on earth is limited. Only 3% of the water on earth is freshwater. All lakes, rivers and swamps combined include a very small part that is 0.3% of the earth's total freshwater reserves. Hence water should be used judiciously. So water day is celebrated every year to attract the attention of everybody towards the importance of conserving water.
Thus, the correct answer is option A.
Multiple choice commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Why earth appears blue from the space?

  1. About 71% of the earths surface is covered with water which gives blue colour to earth.

  2. Earth is covered with blue air.

  3. Earth is covered with blue coloured mountains and rocks.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The earth is predominantly (71 % of the earth's surface) covered with water. Water absorbs the white light in the radiation (sunlight). The sunlight through appears white it is actually a combination of lights of several different colors (Violet, indigo, blue, green, yellow, orange and red). 
  • When sunlight reaches the water; the water absorbs, lights of all colors in the white light and reflects only blue light. Thus, the earth from space appears blue. If the water absorbs all colors and reflects only yellow, then it would appear yellow.
Multiple choice evs - i receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Forest control drought through

  1. Lot of water plants

  2. Increasing rainfall

  3. Retention of water and prevention of erosion

  4. Functioning as water shed
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Forests helps in producing rainfall. More are the trees, the more water gets absorbed into clouds and the more it helps in rain falls. The roots of a tree make gaps in the soil so that when it rains the water can sink in before being absorbed by the soil. These spaces also allow air and water to reach the roots of the plants.  If the forests disappear, there will be less rain resulting in dryer conditions, that eventually lead to drought. Once this happens, the damage is extensive making it difficult to plant more trees or plants later because the soil is so hard and dry. When trees removed using heavy machinery, the soil is pushed down and the gaps fill in. Because all plants and trees need that water and air to reach roots, the conditions become unfriendly for new growth.

Multiple choice evs - i receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Greatest problem in water conservation is to reduce the amount of

  1. Ground water

  2. Precipitation

  3. Run-off water

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

Greatest problem in water conservation is to reduce the amount of evaporation. Evaporation is a process by which a large amount of water evaporate in the form of water vapours (gaseous form)

So, the correct answer is 'Evaporation'

Multiple choice commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

Which of the following can be used to conserve water in homes?

  1. Composting toilets

  2. Rainwater harvesting

  3. Automatic faucet

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

Water-saving technology for the home includes:

  • Low-flush toilets and composting toilets. These have a dramatic impact in the developed world, as conventional western toilets use large volumes of water. 
  • Rainwater harvesting high-efficiency clothes washers weather-based irrigation controllers garden hose nozzles that shut off water when it is not being used, instead of letting a hose run. Low flow taps in wash basins. 
  • Automatic faucet is a water conservation faucet that eliminates water waste at the faucet. It automates the use of faucets without the use of hands.

Multiple choice commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

How do you conserve water by watering plants?

  1. By watering optimum quantities regularly

  2. By watering heavily but less often

  3. By watering Twice a week

  4. By watering very little
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water heavily may  result in root rot due to water logging preventing the roots from respiring aerobically. When roots respire anerobically alcohol produced as a byproduct results in root rot. Watering has to be done based on the season and the water requirement of the plant

So, the correct answer is 'By watering optimum quantities regularly'

Multiple choice commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

An exhaustible renewable resource is

  1. Coal

  2. Solar energy

  3. Water

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

Natural resources are of two types, exhaustible and non-exhaustible. Exhaustible resources are those natural resources that are available in limited quantity. Examples include coal, natural gas, petroleum. Non-exhaustible resources are those natural resources that are available in abundance. Renewable resources are those which can be recycled or replenished. The solar energy is renewable and non-exhaustible source. Water is a renewable but exhaustible resource. It may exhaust one day if used without any concern. 

Thus, the correct answer is 'Water.'