Tag: unequal distribution of resources

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Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Biogas is a good substitute for

  1. Natural gas

  2. Crude oil

  3. Coal

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

Biogas is a renewable energy source produced from organic waste. It can serve as a substitute for various conventional fuels like natural gas, coal, and petroleum products in different applications.

Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Bioenergy is the energy obtained from

  1. Coal

  2. Natural gas

  3. Biomass

  4. Petroleum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Biomass is the amount of organic matter present in an organism. It is the stored form of energy in an organism. Biomass is used to produce bioenergy. Biomass can be of various types such as woods, crops, landfill gas etc. Biomass can be converted to various forms to produce biofuels, biogas etc. Highest amount of biomass is present in plants as they trap solar energy and convert it into mechanical energy in the form of stored food. 
So, the correct answer is 'Biomass'.
Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Biogas contains

  1. $CH _4+CO+CO _2$
  2. $CH _4+CO _2+H _2$
  3. $CO+CO _2+H _2$
  4. $CO+CO _2+NO _2$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Biogas is a form of energy produced from anaerobic decomposition of waste material and organic matter. It is a renewable source of energy and a good alternative in place of fossil fuels which are depleting with time. Biogas is produced by methanogenic bacteria which breakdown organic matter in the absence of oxygen. They produce biogas which is a mixture of gases like methane (CH4), carbon dioxide (CO2) and hydrogen (H2) in different composition.
So, the correct answer is 'CH4 + CO2 + H2 '.
Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Bioenergy is obtained from

  1. Petroleum

  2. Natural gas

  3. Biomass

  4. Synthetic fuel
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Biomass is the amount of organic matter present in an organism. It is the stored form of energy in an organism. Biomass is used to produce bioenergy. Biomass can be of various types such as woods, crops, landfill gas etc. Biomass can be converted to various forms to produce biofuels, biogas etc. Bioenergy is renewable source energy because it can be replenished over a period of time.
So, the correct answer is 'Biomass'.
Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

Hot water of Manikaran is used for generating electricity. It is known as 

  1. Solar energy

  2. Biomass energy

  3. Geothermal energy

  4. Hydroelectric energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
A. Solar energy is energy generated from heat of sun.
B. Biomass energy is generated from the biomass i.e. organic matter of plants and animals which in turn, contains the stored solar energy.
C. Geothermal energy is the energy generated from heat of earth. 
D. Hydroelectric energy is generated using water which is passed over turbines which flow at a high speed and electricity is generated.
Manikaran (located in Himachal Pradesh) hot springs are used to generate geothermal energy because the heat of the water is used to produce electricity.
So, the correct answer is 'Geothermal energy'.
Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

The scientist could who first demonstrated that nuclear energy be harnessed to produce electrical energy was :

  1. Homi Bhabha

  2. Enrico Fermi

  3. W B Lewis

  4. P A M Dirac
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Enrico Fermi (1901-1954) was an Italian physicist and recipient of the 1938 Nobel Prize in Physics. He created the world's first nuclear reactor, the Chicago Pile- 1.

So, the correct answer id 'Enrico Fermi'.

Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

In which form energy flow occur in ecosystem?

  1. Solar energy

  2. Heat energy

  3. Chemical energy

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

In an ecosystem, energy enters from the sun as solar energy and is converted into chemical energy by producers, but the primary source driving the entire flow is solar radiation.

Multiple choice commercial applications management of natural resources unequal distribution of resources protecting our environment rules are for everyone

On the average, about what percentage of the solar energy that strikes the outer atmosphere eventually reaches the earth's surface?

  1. 5%

  2. 15%

  3. 30%

  4. 50%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Approximately 50 percent of the solar radiation reaching the outer atmosphere is absorbed or reflected by the atmosphere, clouds, and surface, while the rest reaches the Earth's surface.