What causes seasons?

seasons

 
Picture of Cash Gericke
seasons
by Cash Gericke - Tuesday, 23 October 2012, 1:15 PM
 

the seasons change because

 

1. the earth rotates on its axis causing one side to have warm weather while the

other as cold

2. if its warm in the southern hemesphere than its warm in the north

3. the height of the sun in the sky varies the seasons too