Morning Star solutions for Total Geography [English] Class 9 ICSE chapter 2 - Geographic Grid: Latitudes and Longitudes [Latest edition]

The imaginary lines running east to west on a globe are called ______ while those running north to south are called ______.

Name the criss-crossing lines on a globe that form a framework.

Which of the following is true about the lines of Latitude?

In each hemisphere for which latitude the length of the circle is half the length of the Equator?

The total number of the parallels of Latitude are ______.

The poles are located at what angular distance from the Equator?

Which of the following heat zones are correct?

Which of the following is true about lines of longitude?

See the above figure and answer the following question.

What would be the value of angle AOB?

See the above figure and answer the following question.

The circle through EQ is a ______.

See the above figure and answer the following question.

Identify the relationship between length of the Prime Meridian and that of 40° Meridian.

Assertion (A): 1° angular distance of the parallels of latitudes is roughly equal to 111 km. 

Reason (R): The poles are each located at 90° angular distance north or south of the Equator.

The distance between two lines of longitude is maximum at which latitude?

Assertion (A): All places on a particular meridian will have noon at the same time.

Reason (R): The sun crosses a meridian at noon.

The Earth has been divided into how many Time Zones?

What is Standard Time?

Which of the following is true about the International Date Line?

Assertion (A): For each 1° longitude towards the East, 4 minutes are to be added and each 1° longitude towards the West, 4 minutes are to be subtracted.

Reason (R): The earth rotates on its axis from East to West.

I travelled from Tokyo, Japan to Alaska, USA. I was very sad to lose a day. How did this happen?

It was midnight at the Fiji Islands. What would be the time in London?

A great circle is a circle drawn on the surface of a sphere with radius ______.

Which of the following are great circles?

Assertion (A): There is a time difference of a full day on crossing the ID L. 

Reason (R): It is diametrically opposite the Greenwich Meridian.

Assertion (A): Great circles are used to find the shortest distance between any two points on the earth's surface.

Reason (R): Great circle routes take into account weather or political restrictions.

What is a geographic grid? 

How does the geographic grid serve the same purpose as co-ordinates on a graph?

What are the lines of latitude?

What are lines of longitude?

Who devised the lines of latitude and longitude?

Mention two characteristics of lines of latitude. 

Name the two hemispheres of the earth made by the Equator.

Name the thermal zones of the earth.

List any two uses of the lines of latitude.

Express 1° angular distance in kilometers.

With the help of a diagram, show the important lines of latitude.

Which line is known as the Prime Meridian? 

State the importance of the Prime Meridian.

How can the general climate of an area be described with the help of the lines of latitudes?

Which line of longitude is used to fix the World Standard Time? State its value in degrees. 

State the longitudinal value in degrees of Indian Standard Meridian.

List any two characteristics of the Great Circles.

List any two uses of the Great Circles.

What are the Great Circle Routes? 

State the importance of Great Circle Routes.

State the five lines of latitude.

What is the significance of these lines of latitude?

Give a geographical reason for lines of latitude are called parallels of latitude.

Give a geographical reason for lines of latitude are not of equal length.

Give a geographical reason for lines of latitude carve out the heat zones of the earth. 

With the help of a diagram, show the important lines of latitude.

What are lines of longitude?

State the use of the lines of longitude in relation to distance and time.

Give a reason for the lines of longitude are also called Meridians of longitude.

Give a geographical reason for the lines of longitude are of same length.

Give a reason for the diametrically opposite lines of longitude and the Equator are called Great Circles.

Draw a well labelled diagram to show that places on the same longitude have the same time.

State the meaning of the International Date Line.

State with an example how time lost or gained is computed with reference to the International Date Line.

Give a reason the international date line deviates and goes zig-zag near some Islands in the Pacific ocean.

Give a reason the greenwich time is called Greenwich Mean Time.

Give a reason the great Circles are the shortest routes between two places.

State with one practical example how is time of a place found with the help of longitudes.

An important programme was to be broadcast from Mumbai at 7.30 p.m. This was heard by some Indian sailors near Ivory Coast in West Africa at 20°W longitude. What was the local time there?

What is the longitude of a place where the local time 1:15 p.m. when it is 4 a.m. at Chicago (88°W)?

Calculate the time at Durban (longitude 30°E) when the time is 7.00 a.m. at New York (75°W).

Calculate the longitude of a place where the local time is 6.00 a.m. when the time is 9.00 p.m. at New Delhi on longitude 77° E. 

Calculate the local time in Singapore (104°E) when it is 6.00 p.m. at Greenwich.

Calculate the location of a place where the local time is noon when it is 7.30 p.m. at Greenwich.

What is the time and day at Mumbai (73°E) when it is Sunday at 10.30 p.m. at Shillong (92°E)? Give a reason to support your answer.

Find the latitude of your city and state how has this influenced the climate of your city.

Your home town is located at a place which receives the slanting rays of the sun. How is the temperature of your home town different from your boarding school, located at a place that receives the vertical rays of the Sun?

Find out the name of the country which has the maximum number of time zones in the world. What is reason behind a country having many time zones and others like India have just one time zone.

When you were waiting to welcome New Year in India on December 31, some countries of the world like Australia, New Zealand and Japan have already welcomed New Year. What is the reason for this?

Look at the map of the Time Zones and answer the following questions:

1. What is the Longitudinal degree of IST ______?
2. If it is 2 a.m. IST what will be the Time at Tokyo ______, London ______, San Francisco ______?
3. Name the place which is diametrically opposite of India.
4. Is the Indian Standard Time ahead of San Francisco Time? Give reasons for your answer.