Choose the correct option to complete the following sentence:
After reading about the hunt for water on Mars, Ishaan decided to study ______, so that one day he can help look for tiny forms of life on other planets and moons.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Astrobiology
Complete sentence: After reading about the hunt for water on Mars, Ishaan decided to study astrobiology, so that one day he can help look for tiny forms of life on other planets and moons.
| Word | Meaning | Example |
|---|---|---|
| (1) Astrology | the belief that the positions of the stars and planets affect people’s lives | Mausi checks her astrology column in the newspaper every Sunday. |
| (2) Astronomy | the scientific study of the stars, planets and other objects in space | Our astronomy club set up a telescope on the school roof to watch the moon. |
| (3) Astrophysics | the study of the stars and planets using the laws of physics | Neel’s astrophysics professor explained how much heat the sun gives out each second. |
| (4) Astrobiology (answer) | the study of whether life exists, or could exist, anywhere beyond the Earth | Scientists in astrobiology test how long tiny living things can survive in the cold, dry air of Ladakh. |