Which of the following is a non-metal ?

Which of the following is a greenhouse gas?

Which of the following is a renewable source of energy?

Which of the following is responsible for carrying oxygen in our blood?

The process of conversion of water vapor into water droplets is called:

Which of the following is an example of a chemical change?

Which of the following is the smallest unit of life?

Which of the following is responsible for causing the common cold?

Which of the following is the largest planet in our solar system?

Which of the following is not a component of the circulatory system?