Question

What is meant by wind? How many types of winds are there? Describe.

Answer 1

Answer:

Wind is the movement of air caused by the uneven heating of the Earth by the sun. There are 5 types of wind :-

1. Planetary Winds

2. Trade Winds

3. The Westerlies

4. Periodic Winds

Answer 2

$• \sf\underline\orange{\:\:\:\:Wind\:\:\:\::-\:\:\:\:}$

The horizontal movement of air from high pressure area to low pressure area is called wind .

$\bf \underline{There \: are \: four \: types \: of \: wind \: are \: :-}$

$\begin{gathered}\bf\begin{cases}\sf{1.) \: planetary \: winds \: (permanent \: wind)}\\\sf{2.) \: periodic \: winds}\\ \sf{3.) \: local \: winds}\\\sf{4.) \: variable \: winds} \end{cases}\end{gathered}$

$\bf\underline{(1) \: Planetary \: winds \: or \: permanent}$ $\bf\underline {winds\red↓}</p><p>$

Winds that blow all the time in the same areas of the world are called Permanent winds or Planetary winds .

$\bf \underline{There \: are \: three \: types \: of \: planetary \: winds}$$\bf\underline{ or \: permanent \: winds \: are \: :-}$

$\begin{gathered}\bf\begin{cases}\sf{1.) \: the \: trade \: winds}\\\sf{2.) \:the \: westerlies}\\ \sf{3.) \: the \: polar \: winds} \end{cases}\end{gathered}$

$\bf \circ \: {The \: Trade \: Winds \:↓ }$

These winds blow from sub - tropical high pressure belt to equatorial low pressure belt .

$\bf \circ \: {The \: Westerlies \: ↓ }$

These winds blow from sub - tropical high pressure belt to sub - polar low pressure belt.

$\bf \circ \: {The \: Polar \: Winds\: ↓ }$

These winds blow from polar high pressure belt to sub - polar low pressure belt .

$\bf \underline{2.) \: Periodic \: winds \: :-}$

Periodic winds are the winds which blow at a particular period of the day or season of the year . For example :- Land and Sea breezes , Monsoon winds etc .

$\bf \underline{3.) \: Local \: winds \: :-}$

Local winds are the winds blowing in a a particular location due to specific pressure conditions . For example :- Loo , a hot , dry and dusty wind blows over Northern India and Pakistan in May and June .

$\bf \underline{4.) \: Variable \: winds \: :-}$

The winds which are are not regular and are of short duration are called variable winds . For example :- Cyclones and Anticyclones .