What causes migrating birds to travel to far—off lands?

Correct option is D

The correct answer is option (d) They fly to lay egg

Information Booster : 

Migrating birds travel to far-off lands primarily due to the following factors:

1. Seasonal Changes: Many birds migrate to find better environmental conditions for survival, such as more favorable temperatures and food availability. During colder seasons, birds move from colder regions to warmer areas.

2. Food Availability: Migration is often driven by the need for food. Birds relocate to areas with abundant resources during different times of the year, such as insect populations or fruiting plants.

3. Reproductive Needs: Birds often migrate to find more suitable breeding grounds. This helps ensure the survival of their offspring by providing them with ideal environments and safety.

4. Daylight and Navigation: Birds are influenced by changes in daylight length and use environmental cues such as the sun, stars, and Earth's magnetic field for navigation.