Where is wind energy used?
Select the correct statements from the following.
(i) Wind energy is renewable source of energy.
(ii) Installation cost of wind mill is low.
(iii) Wind mills are generally installed in populated areas.
(iv) Energy produced from wind mills is non-polluting.
Why is it difficult to drive a bicycle or row a Boat against the wind but easy, in the direction of the Wind?
How is wind energy used in wind mills?