Work and Energy
The change in the quality of the environment that can be harmful and unpleasant for living things is called
energy
pollution
revolution
transformation
pollution
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The energy use in solar cookers, solar distillation plants, solar power plants is known asA. chemical energy
B. solar energy
C. thermal energy
D. nuclear energy
The capacity of a body to do work is called
A. energy
B. work load
C. kinetic energy
D. potential energy
During the interconversion of energy from one form to other forms, the total energy at any time remains
A. constant
B. zero
C. increasing
D. decreasing
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
D. nuclear energy
Fossil fuels are burnt to produce electricity in
A. thermal power
B. chemical power
C. nuclear power
D. solar cars
The water stored in damns is used for irrigation and also to generate
A. heat energy
B. electrical energy
C. thermal energy
D. chemical energy
The main source of heat is
A. moon
B. stars
C. sun
D. Mars
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