How can you tell if you're in the northern hemisphere?

Answer 1

use a compass

Answer 2

One way to tell you're in the northern hemisphere is by looking at the position of the sun in the sky. In the northern hemisphere, the sun appears to move from east to west in the southern part of the sky. Another way is to observe the direction in which trees lean due to prevailing winds, which is typically south in the northern hemisphere. Additionally, the North Star (Polaris) is visible in the northern hemisphere, aiding in navigation.