Questions

Which of the following is NOT a radioactive element?

Biogas is produced from biomass by

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.

coal is the _____ source of commercial energy in India. 

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

Who was the first Indian Badminton player to win the men's singles title at the All England Championship in 1980?

Where was Pablo Picasso from?

Who wrote the book 'An Era of Darkness' which extensively narrates the grim realities of colonial India?

Gol Gumbaz was built in which century?