Question

Read the statements given below.
(Switching off the lights and fans in empty classrooms of school.
(i) In summer months keeping the fan on in the rooms before leaving the house so that the rooms remain
cool.
(i) Increase the use of unconventional sources of energy.
(iv) Switching off the street lights positively in the daytime.
Choose the statements that are related to conservation of energy in daily life-
(a) (i), (ii) & (iii)
(b) (ii), (iii) & (iv)
(c) (i), (iii) & (iv)
(d) (i), (i) & (iv)​

Answer 1

Answer:

i, iii and iv... because if we keep the fan on, then it will be a wastage if conventional energy