Question

The duration of twilight:

Options

• increases to the poles

• might last for as much as 7 weeks at the poles

• is as long as the sun is 18° below the horizon

• all of the above

Answer 1

all of the above

Explanation:

1. The duration of twilight increases as you move toward the poles. Near the poles, the Sun does not set or rise sharply, causing twilight to last much longer.
2. At the poles, twilight can last for weeks because the Sun remains just below the horizon for an extended period during the polar day and night cycles.
3. Twilight is considered to last until the Sun is 18° below the horizon, at which point it becomes night.

All of the statements are correct, making (d) all of the above the right answer.