Que-Ans: [3 Marks Each]

Question 13 Marks

Describe Geographic Information System $(GIS).$

Answer

This system collects observational data of various levels of field information.

$GIS$ is a powerful tool for archiving, retrieving, converting and rendering at will.

This is a computer based system providing $GIS$ opportunity for regional interpretation of any country's natural, social, economic etc. details of that region.

Its workings fall into two sections.

$(1)$ Vector and $(2)$ Shuster.

Study or training is required to use these systems.

With the help of this system any statistical information can be mapped in an excellent way.

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Question 23 Marks

Explain the pole star method to find North direction.

Answer

self practice

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Question 33 Marks

Write a short note about the 'Local Time'

Answer

Due to the daily motion of the earth, every longitude on the earth is exactly opposite to the sun once in $24$ hours so in all the places on any one longitude the sun comes on one head in $24$ hours.

And all of those places are moderated at the same time and that time is called $12$ noon.

Time All the locations on that longitude are called local time.

Since each longitude is in front of the Sun, the local time of each is different.

The longitude of any city can be known if local time is given.

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Question 43 Marks

Find a direction using a magnetic compass and write a short note.

Answer

The magnetic north direction of any location can be known from this compass as shown in the figure:

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Question 53 Marks

Write a directional short note using a clock.

Answer

Place your watch according to local time.
Keep the watch on your palm in such a way that the small fork indicating the hour is in front of the sun.
Draw a line $“AC”$ touching the center of the clock and the bar.
Lengthening the bisector line $"AD"$ dividing the two equal angles formed by the lines $"AB"$ and $"AC"$ will show the south direction in the Northern Hemisphere.
Draw a line $"AB"$ connecting the center of the clock and the number $12$ in the Southern Hemisphere.
Which stays towards the sun.
Draw the bisector line $“AD”$ of the angle $“AB”$ formed by this line $“AB”$ and the line $“AC”$ formed by the small fork.
This line will show the north direction.

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Question 63 Marks

Describe the method of navigation using a stick or pencil.

Answer

Knowing the geographical north direction with the help of wood.
Place a large piece of paper on the ground. Place a sharp stick or pencil directly in the center.
At $11$ o'clock in the morning the shadow falls. Show it by a line $A.$
Now draw an arc.
After $12$ noon the shadow of the stick will touch the arc at some poin

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Question 73 Marks

Describe remote sensing technique.

Answer

A remote sensing method is a method of obtaining a device with the help of a remote device without having direct physical contact with any object or event.
In $1960,$ a geographer named Evelyn Pratt first used the term remote sensing.
The beginning of the process of this method can be traced back to the origin of the organism, if our five senses need any other senses.
All the senses that feel the sensation reach the brain.
Your brain is a kind of processor that organizes the information of all the senses and determines its end result.
Thus, each sense is a sensor.
This is the basic concept of today's remote sensing technique and is intended to get information about the earth.
Ancient and modern travelogues, pictures, photos, maps, films, etc. provide information about the earth.
It now takes aerial photos and satellite images, called satellite imagery.
In the remote sensing technique, photos taken from planes and satellites are based on imagery.
Aerial photos are images taken of the Earth's surface by a camera mounted on a balloon or aircraft.
Remote sensing satellites have two types of orbits.

$(1)$ Earth-stationary orbit $(2)$ Sub-earth-orbit.

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Question 83 Marks

Explain the direction finding pole star way.

Answer

This is a very simple and easy way to find the north direction.
An overall bright star is seen just above the North Pole at night.
He is called the pole star.

Look carefully at the figure given here.
It shows the pole star below.
Above it is a cluster of seven stars with distinctive shapes.
It is called Great Bear.
The last two stars on the left are called pointers.
The pointers meet the pole star.
This method is useful for determining the position of the pole star.

The north direction can be known depending on the location of the pole star.

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Geography Que-Ans: [3 Marks Each]

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