Energy obtained from sun is:
a) solar energy
b) wind energy
c) tidal energy
d) geothermal energy
The amount of solar energy falling vertically on atmosphere is:
a) 1.1 kilowatt per square meter
b) 1.2 kilowatt per square meter
c) 1.3 kilowatt per square meter
d) 1.4 kilowatt per square meter
Solar energy can be used for
producing electricity from:
a) two ways
b) three ways
c) four ways
d) five ways
Wind mill consists of four wings on a huge pole:
a) 60ft
b) 70ft
c) 80ft
d) 90ft
Some hot stone are found under the surface of the earth:
a) 10km
b) 15km
c) 20km
d) 25km
Fuel from biogas is of types:
a) 2
b) 3
c) 4
d) 5
