Question

short ans required. fast ​

Answer 1

Answer:

1st answer The soles of the shoes have grooves in order to increase friction between the surface of the floor and the soles of the shoes. This prevents slipping on the floor.

2nd answer :- Because the opposing force is called friction. ... in case of walking on water spilled tile floor , roughness decrease or smoothness increases due to this coefficient of friction decrease and hence, friction decreases that's why we tends to slip on water spilled tile floor.

3rd answer :-Birds have a streamlined body to make their flight easier through the air. Snakes have a streamlined body to assist them move forward. Some other animals, such as sharks and dolphins, are streamlined so that they have less resistance when swimming in water. This same idea works with airplanes

4th answer :- last answer in image

Explanation:

Hope this helps you