Question

(a) Write names of any two conventional sources of energy.
(b) Write any two limitations in harnessing wind energy.

Answer 1

1. Oil, gas and coal are some conventional sources of energy.

2. Here are some limitations in harnessing the wind energy :
i. The speed of wind must be high (min. 15km/hr).
ii. Cost of setting up a wind farm is high.

iii. Availability of land as per the requirements i.e. large lands in hilly regions with high wind speed.