Question

1. Define these terms:
a.Constellation:
b.Astronomy:
2.Give reason.
a.Adventure sports are exciting and risky.
b.A mountaineer has to be very cautious while climbing.
c.We cannot see the stars,planets and meteors in the sky during the daytime. ​

Answer 1

Constellations are the group of stars forming a pattern

Answer 2

Answer:

1.)

a. Constellation is a group of stars which from a clear pattern in the sky.

b. The study of celestial bodies is a specialised field of science is known as Astronomy.

2.)

sorry I don't know the reason of no. A and B

C. Because during daytime the sun's light cover all the stars, planets, meteors and others.