Tag: importance of the conservation of natural resources

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Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Energy source which do not evolve CO$ _2$ is

  1. Oil

  2. Coke

  3. Nuclear energy

  4. Other organic substances
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oil is a mixture of molecules that mainly contain carbon and hydrogen. When it burns it also produces CO$ _2$, but 25% less than coal for the same amount of energy (because the combustion of hydrogen gives energy but generates only water). 

Coke and other organic substances when used as source of energy, CO$ _2$ can be released. 
Nuclear energy can not evolve CO$ _2$. Thus, the correct answer is option C.

Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Which of the following is the best choice for energy production?

  1. Hydrogen

  2. Solar system

  3. Windmill

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

Energy generated by using wind, hydrogen, tides, solar, geothermal heat, and biomass is known as non-conventional energy. These are the inexhaustible non-conventional resource. Hence, these are the best choice for energy production.

Thus, the correct answer is option D.

Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

The economically friendly measure to conserve solar energy is

  1. Sugarcane plantation

  2. Energy plantation

  3. Both (A) and (B)

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen. Hence, planting green trees is an easy way to conserve solar energy.

Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Amazon rainforests are considered as 'lungs of the planet' as they contribute ________ of the total oxygen in the earth's atmosphere.

  1. 10%

  2. 15%

  3. 20%

  4. 30%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

About 20% of the world oxygen is produced in the rainforests. amazon They are described as the  'lungs of the planet' because they provide the essential world environmental service of continuously recycling $CO _$ into $O _2$.

Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Ecofriendly method is

  1. Plantation of $C _3$ plants

  2. Plantation of Sugarcane

  3. Energy plantation

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Energy plantation is the practice of planting trees, purely for their use as fuel. Terrestrial biomass i.e., the wood plants have been used for a long time to generate fire for cooking and other purposes.
  • Energy plantation is an Eco-friendly method or environmental friendly as this method does not cause any harm to the environment.
  • Hence the Eco-friendly method is Energy plantation.
  • So, the correct answer is 'Energy plantation'.
Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Select the eco-friendly activity among the following.

  1. Using car for transportation.

  2. Using polybags for shopping.

  3. Using dyes for colouring clothes.

  4. Using windmills to generate power for irrigation.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Solar energy, wind energy, geothermal energy are some of the non-exhaustible non-polluting sources of energy. These energy sources are environmental friendly. For example- wind energy can be captured through wind mills for irrigating fields as well as generating electricity power
So, the correct answer is 'Using windmills to generate power for irrigation'
Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Which of the following activities that you perform daily in which natural resources can be conserved or energy utilisation can be minimised?

  1. Use fan and light only when required.

  2. Unused water in the water bottle may be used for watering plant.

  3. Use solar water heating devices.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ways to mimimize energy utilization are as follows:
(a) Unused water in the water bottle may be used for watering plant.
(b) Close all the taps before you go to sleep.
(c) Avoid using a hose pipe for watering plants.
(d) Wash vehicles only when they are dirty.
(e) Use fan and light only when required.
(f) Use solar water heating devices.
(g) Use CFL in place of conventional bulbs/tubes.
Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

What measures would you take to conserve electricity in your house?

  1. Use of fluorescent tubes or CFL.

  2. Put off the fans and lights when they are not required.

  3. Maximum use of solar radiation and use of solar water heating system during winters.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ways of conserving electricity are as follows:
(a) Put off the fans and lights when they are not required.
(b) Maximum use of solar radiation.
(c) Use of solar water heating system. during winters.
(d) Use of fluorescent tubes or CFL.
Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Which of the following activities in daily life are eco-friendly?

  1. Separation of biodegradable and non-biodegradable substances

  2. Gardening

  3. Use of gunny bags/paper bags in place of polythene/plastic bags

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

Eco-friendly activities in daily life:

  • Separation of biodegradable and non-biodegradable substances.
  • Gardening
  • Use of gunny bags/paper bags in place of polythene/plastic bags.
  • Using public transport for commuting, walking or using cycle for short distances.
  • Harvesting rainwater.
  • Switching off light/ fans in unoccupied rooms.
  • Use of compost and vermicompost in place of fertilizers.

Multiple choice commercial applications sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources reduce, recycle, reuse

Leader of "Narmada Bachao Andolan"

  1. Vandana Siva

  2. Medha Patkar

  3. Menaka Gandhi

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

Medha Patkar is the well-known social activist and leader of the Narmada Bachao Andolan, a movement against the construction of large dams on the Narmada River.