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Subjects
Science State Board
Class 10
Environmental management
Textbook questions
7.
Choose the correct answer III
Exercise condition:
4
m.
1
.
Green house effect refers to,
cooling of earth
trapping of UV rays
cultivation of plants
warming of earth
2
.
A cheap, conventional, commercial and inexhaustible source of energy is,
solar energy
wind energy
thermal energy
hydropower
3
.
Global warming will cause,
raise in level of oceans
all of these
sinking of islands
melting of glaciers
4
.
Which of the following statement is wrong with respect to wind energy,
the blades of wind mill are operated with the help of electric motor
production of wind energy is pollution free
usage of wind energy can reduce the consumption of fossil fuels
wind energy is a renewable energy
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