|
Give some uses and advantages of solar energy
|
|
1
|
736
|
March 16, 2018
|
|
Write the types of preference shares
|
|
1
|
2368
|
August 2, 2016
|
|
The Government of Delhi and Delhi Transport Corporation (DTC) have converted passenger
|
|
2
|
412
|
July 8, 2016
|
|
Energy from various sources is considered to have been derived from the sun. Do you agree? Justify your answer
|
|
1
|
5955
|
July 8, 2016
|
|
What are the environmental consequences of using fossil fuels? Suggest the steps to minimise
|
|
2
|
3659
|
July 8, 2016
|
|
Why is there a need for harnessing non-conventional sources of energy?
|
|
2
|
3609
|
July 8, 2016
|
|
The Government of Delhi and Delhi Transport Corporation (DTC) have converted passenger buses
|
|
2
|
1298
|
July 8, 2016
|
|
Define the process of nuclear fission.Write the steps involved in generating electricity in a nuclear reactor
|
|
1
|
9513
|
July 8, 2016
|
|
Electricity generated at hydroelectric power stations is considered to be another form of solar energy. Explain
|
|
1
|
2220
|
July 8, 2016
|
|
Manisha loves to cook a variety of food. She , is busy all the time baking, frying, heating
|
|
2
|
407
|
July 8, 2016
|
|
Shalini makes a model of box type solar cooker. She uses a black translucent plastic sheet
|
|
2
|
713
|
July 8, 2016
|
|
Write two different ways of harnessing energy from ocean
|
|
1
|
7886
|
July 8, 2016
|
|
Solar energy can be harnessed directly as well as indirectly. Give two examples of each type
|
|
1
|
3099
|
July 8, 2016
|
|
Hydro energy is an indirect source of solar energy. Justify
|
|
1
|
2972
|
July 8, 2016
|
|
Radheshyam is a prosperous farmer. He happily ensures.that the cow-dung and other biological
|
|
2
|
446
|
July 8, 2016
|
|
Bio-gas is considered to be a boon to the farmers. Give reasons
|
|
1
|
8807
|
July 8, 2016
|
|
State the main differences between thermal power and hydro power plants based on electricity
|
|
2
|
8453
|
July 8, 2016
|
|
Name the places of our country where fields of natural gas are found
|
|
2
|
1293
|
July 8, 2016
|
|
Why is there so much emphasis on changing over from petrol/diesel driven automobiles
|
|
2
|
4942
|
July 8, 2016
|
|
Increasing demand of fossil fuels has caused harm to our environments
|
|
2
|
3227
|
July 8, 2016
|
|
Sonali went to her ancestral village along with her father during the summer holidays
|
|
2
|
296
|
July 8, 2016
|
|
World energy consumption pattern indicates that the energy consumption will be tripled
|
|
2
|
914
|
July 8, 2016
|
|
If energy in the universe is constant, why is the world yelling out for energy crisis?
|
|
2
|
1689
|
July 8, 2016
|
|
What is a nuclear waste? What are the hazards of nuclear waste to living things?
|
|
1
|
1709
|
July 8, 2016
|
|
Expand OTEC. On what principle is it based?
|
|
1
|
4562
|
July 8, 2016
|
|
Name the type of reaction in the sun which produces its energy
|
|
2
|
1838
|
July 8, 2016
|
|
List the causes of increasing energy requirements
|
|
1
|
821
|
July 8, 2016
|
|
Why is tidal energy not exploited on a commercial scale?
|
|
1
|
1093
|
July 8, 2016
|
|
A student has set up a solar cooker in a box by using a black painted aluminium sheet,
|
|
2
|
1667
|
July 8, 2016
|
|
State the type of energy conversion taking place in (i) thermal power plant and (ii) solar power plant
|
|
1
|
1078
|
July 8, 2016
|
