question_answer

DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 1 Until eighteenth century, people thought that air was just one substance. Now it has been experiment all proved that it is really not so. Air is a mixture of gases. Which of the following statement(s) is/are correct?

A) Water is present in air in vapour form

B) Water is not present in air

C) Water is present in air in liquid form

D) Water is present in air in solid form