Among the following which one is not the contact

Which statement is incorrect regarding the atmospheric layers and their characteristics?

How does a bulb glow when the switch is turned on?

Who is elected as the new President of the country South Korea?

Which gas is commonly used for the artificial ripening of fruits?

Ebola disease is caused by which of the following?

Who discovered the virus?

Who discovered Penicillin?

A satellite is used for

What is the other name for conventional source of energy?

Which instrument is commonly used to measure the depth of water bodies?