According to Global energy review 2021, IE, Paris, global energy consumption of wind energy sources is………
a) 22%
b) 11%
c) 44%
d) 23%
According to Global energy review 2021, IE, Paris, global energy consumption of solar energy sources is………
a) 22%
b) 11%
c) 44%
d) 23%
Explanation:Global energy demand is set to increase by 4.6% in 2021, surpassing pre-Covid-19 levels.
Sunlight brings…….to earth.
a) heat
b) light
c) fuel
d) both a and b
Which color absorbs more heat?
a) white
b) black
c) yellow
d) blue
Which color reflects more heat?
a) white
b) black
c) yellow
d) blue
Why black color pipe is used in solar water heater?
a) it reflects more heat
b) it absorbs less heat
c) it absorbs more heat
d) it is cheap
Explanation:Solar water heating collectors capture and retain heat from the sun and transfer this heat to a liquid. Solar thermal heat is trapped using the “greenhouse
