English Medium Class 10 - CBSE Question Bank Solutions for Science

If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring? Justify your answer.

What would happen if green plants disappeared from earth?

Leaves of a healthy potted plant were coated with vaseline. Will this plant remain healthy for long? Give reasons for your answer.

Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?

Explain the importance of soil for plant growth.

What is the purpose of making urine in the human body?

Name the organs that store and release the urine.