Question

Complete the following sentences by choosing the best alternative under each.
Think carefully before you make your choice.
1. Birds migrate______.
a) regularly and seasonally b) three times a year c) only when in danger d) when the surroundings get polluted
A FLIGHT WITH THE MOON ON THEIR WINGS Unit 6
TNSCERT Class 10

Answer 1

birds migrate only when in danger .

so option c) is right answer ,,,,

hope it helps !!!!