Questions

The soil is formed by breaking down of large rock surfaces into pieces due to water, wind and all atmospheric changes by mixing with plants and animal decays. This process is called as weathering.

In terms of concentration of impurity (a.k.a impurity doping concentration, often abbreviated to doping concentration), from the highest to the lowest among the three regions of a bipolar junction, emitter, collector, and base are the correct order. The above order is independent of the type of BJT, npn or pnp

The freedom of expression is in amendment-1 of the Indian constitution.

REM sleep i.e, Rapid Eye Movement sleep is also known as paradoxical sleep because the measures of the brain activity closely resemble waking consciousness, but the person is incapable of moving as the brain is in fully active mode that time.