What is the difference between Football and Futsal?

The size of a football pitch is bigger and longer than that of futsal. The number of football players is 11 while that of futsal players is 5. The size of a football is bigger than that of a futsal ball. Football players do a throwing when a ball crosses over a line while futsal players do kick-in. The game time of football is 45 minutes while that of futsal is 20 minutes.