General studies bits

• What is the longest river of India ?

  Ganges

• What is the name of the desert in India ?

  Thar Desert

• What is the fastest land animal ?

  Cheetah

• What is the name of the planet closest to the sun ?

  Mercury

• What is the name of the hardest natural substance on earth ?

  Diamond

• What is the name of the gas that plant need for photosynthesis ?

  Carbon dioxide

• Who invented the telephone ?

  Alexander Graham Bell

• What is the name of the chemical symbol for gold ?

  Au

• What is the chemical formula for water ?

  H2O

• Who developed the theory of relativity ?

  Albert Einstein