Everyday ScienceWork and Energy
Fossil fuels are
non renewable energy sources
renewable energy sources
reliable
non reliable
non renewable energy sources
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
The energy use in solar cookers, solar distillation plants, solar power plants is known as
A. 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
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
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
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
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