Questions

Molecular clocks are based on the idea that _____.

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The _____ of energy in India are met from both commercial and non commercial sources. The most _____ sources of energy today are coal and natural gas, hydro
electricity and nuclear power. On the other hand, firewood, cow-dung cakes and vegetable waste etc. _____ non commercial forms of energy. While non commercial
forms of energy _____ demand, coal is the _____ source of commercial energy in India.

and non commercial sources. The most _____ sources of energy today are coal and natural gas

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
A roundabout way of speaking

Which of the following physiological symptoms are signs of stress?

Which city is located on the banks of the river Alaknanda?

What is the reason for formation of Mirage in desert?

The force of friction between two surfaces will increase if:

A conductor having some appreciable resistance is called a