How does the Earth's rotation affect our planet?

[no idea]

why does the Earth rotate?

 

[Andre]

http://curious.astro.cornell.edu/question.php?number=416

 

[ravenprp]

The Earth rotates because of its initial angular momentum, which was created during its formation. As the Earth formed from a cloud of gas and dust, it began to spin due to the conservation of angular momentum. This means that the spinning motion of the particles that make up the Earth became more concentrated as the Earth's size decreased, resulting in a faster rotation. Additionally, the gravitational pull of the Sun and other planets also play a role in the Earth's rotation, causing it to continue spinning on its axis. Without this rotation, the Earth's days would be much longer, and our planet's climate and weather patterns would be vastly different.