Questions

Drowsiness is the state of feeling sleepyness and tired in the day time. It affects our senses especially the sense of vision.

The one word substitute for "a person who is always dissatisfied" is malcontent.

Flourine is the most electro negative element due to its small atomic radius .It also has the tendency to accept an electron to complete octet configuration

This acceleeration denoted by letter g varies from place to place. Unless stated otherwise, it can be taken 9.8 m/s2.

The ozone layer is a region of Earth's Stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.

The Atmosphere is divided into 4 layers according to major changes in temperature. They are :

1. Troposphere,

2. Stratosphere,

3. Mesosphere  and

4. Thermosphere.

The farther away from earth, the thinner the atmosphere gets.