Task 3. What the following words mean. Match with the correct answers 1. Solar A. a mass of ice and dust that moves around the sun
2.Comet B. the state of having weight
3. Gravity C. infinite duration, without beginning in the past or end in the future
4. Orbit D. proceeding from the sun
5. Eternity E. the path described by a heavenly body in its periodical revolution​