question_answer

Read the given statements.

(i) A compact fluorescent lamp uses 75% less energy than a traditional bulb.

(ii) Earth Hour is celebrated on the same day every year.

(iii) The screen saver on a computer saves energy.

(iv) About 30% of the cool air inside a refrigerator escapes every time its door is opened.

How many statements given above is/are true?

A)  1

B)  2

C)  3

D)  4