Which of the following is a renewable source of energy ?
The purpose of the glass cover on top of a box-type solar cooker is to
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To work properly, wind-electric generators need wind speeds of at least about
The site of a hydroelectric plant should be chosen carefully because it
Electricity from the ocean can be generated based on utilizing
A solar water heater cannot be used to get hot water on
Which of the following is not an example of a bio-mass energy source ?
Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy ?
Which of the following is the conventional sources of energy
How many number of neutrons are released in a fission of U – 235 ?
Which of the following is not an example of a biomass energy source ?
Artificial satellites and space probes mainly depend upon which source of energy
The glass cover used in a solar cooker, help us to have the _________ effect in it.
Which component of sunlight facilitates the drying of clothes ?
3 videos|687 docs|659 tests
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3 videos|687 docs|659 tests
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