Репост из: UPSC Prelims MCQs Quiz
Migratory birds take the help of which of the following to direct themselves during migration?
1. Position of the Sun during the day
2. Position of stars during the night 3. Magnetic field of the earth Select the correct answer using the codes below.
Опрос
- 1 only
- 2 and 3 only
- 1 and 2 only
- 1, 2 and 3