Questions

Which phenomenon is responsible for the echo of sound wave?

Which of these resources cannot be renewed?

A permanent magnet can affect

An image formed by a concave mirror on a screen is called __________?

Nodes of Ranvier are microscopic gaps found within:

Name the longest lake in India?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

Rashmi said to me, "Where is the telephone exchange"?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

The introduction of

A-­had ruled from the time man learned to cook food

B-­meant the end of firewood, which

C-­the kerosene stove also