Most of the energy we use originally came from
sun
ocean
soil
air
In a nuclear power plant, uranium atoms
combine and give off heat energy
split and give off heat energy
burn and give off heat energy
split and give off electrons
Which of the following is the best example of increasing an object's potential energy?
Rolling a bowling ball.
Turning on a light bulb
Stretching a rubber band
Dropping a pencil
What country will emit the most carbon in 2019
India
Brazil
China
USA
which country is the largest producer of fossil fuels in the world
Russia
Saudi Arabia
USA
China
In a food chain, the solar energy utilized by plants is only
10%
1%
0.1%
30%
Who is known as father of Indian Green Revolution
V Kurien
C Subramanian
MS Swaminathan
none
0
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