How many pre molars do a person have

When speaking about pre-molars, we would only contain 8 pre-molars, and this is due because we only contain 32 teeth.

We have : (8 pre-molars)

We have : (12 molars)

We have : (8 incisors)

And for the last part, we would contain : (4 canines).

Resistance than a bicycle? i'm not entirely sure

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.