Why does a cyclist bend inwards while negotiating a curve ?

. Why does a cycle tube burst in summer?

Why does a particle moving with uniform speed along a curve have an acceleration?

Why does a parachute descend slowly?

Why does AlCl_3 fume in air?

Why does a ray of light bend when it travels from one medium into another?

A cyclist has to bend a little inwards from his vertical position while turning. Why?

A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?

Why does an alkaline medium inhibite the rusting of iron?