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What is the primary cause of tides on Earth?

The primary reason that smoking cigarettes is bad for our health is that cigarette smoke _______.

Lamberts law is related to –

What is the chemical formula of common salt?

Which of the following devices stores electrical energy in a magnetic field?

Tungsten is used for the construction of filament in an electric bulb because of its 

`Short-sight' in human eye can be corrected by using proper –

A neutral atom has 9 electrons and mass number is 19. What is the number of neutrons in the atom?

_________ is a technique where the plants are grown with their roots suspended in the air.