Here's why:

* Sunrise and Sunset: The sun appears to rise in the east and set in the west. This is because the Earth is rotating eastward, bringing the eastern hemisphere towards the sun first.

* Coriolis Effect: The Earth's eastward rotation influences weather patterns and ocean currents, causing them to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

* Star Trails: If you take a long-exposure photograph of the night sky, the stars appear to make trails. These trails are a direct result of the Earth's rotation, and they curve in a counter-clockwise direction in the Northern Hemisphere, which is consistent with eastward rotation.

Let me know if you have any other questions!