Class 6 Social Science Chapter 1 Extra Questions and Answers Locating Places on the Earth
NCERT Class 6 Social Science Chapter 1 Locating Places on the Earth Important Extra Questions and Answers
Locating Places on the Earth Class 6 Very Short Answer Questions
Question 1.
What is an atlas?
Answer:
An atlas is a book or collection of maps.
Question 2.
What is a north line?
Answer:
It is simply an arrow marked with the letter ‘N’ at the upper right hand corner of the map which points to the north direction.
Question 3.
Why do maps use specific symbols?
Answer:
To make maps more easily under¬stood by a variety of users map markers use specific symbols.
Question 4.
Which authority in India fixes a set of symbols for maps of India?
Answer:
The Survey of India, a government body, has the authority to fix a set of symbols for maps of India.
Question 5.
Why do we use the term ‘nearly’ the shape of a *sphere* to describe the shape of the Earth?
Answer:
We use the term ‘nearly’ because the Earth our planet is not a perfect sphere, but is slightly flattened at the poles.
Locating Places on the Earth Class 6 Short Answer Questions
Question 1.
How do symbols help in reading maps?
Answer:
Symbols help make maps more informations as numerous details can be shown in limited space rivers, buildings, railway line, etc.
- Symbols help over come barriers of language, communication etc.
- They make maps more easily understood by variety of users example less educated.
- Maps have a universal language. The Survey of India has fixed a set of symbols for maps of India.
- There is an international agreement on the use of these symbols. They are called ‘Conventional symbols’.
Question 2.
Describe the various types of Maps.
Answer:
There are several kinds of maps:
- Physical maps: Which mainly show some natural features such as mountains, oceans and rivers.
- Political maps: Which show details of countries or states, boundaries, cities etc. Example: A map of India shows the states and union territories and their capitals.
- Thematic maps: Which shows a specific kind of information. Example: Road maps, rainfall maps, forest distribution maps, industries map etc.
Question 3.
What are parallels of latitudes and meridians of longitude?
Answer:
All imaginary lines that run east to west parallel to the equator (0°) to the poles are called parallels of latitudes.
All imaginary half circles (semi circles) which run from north pole to the south pole are termed meridians of longitude.
Question 4.
How are directions known?
Answer:
Maps contain an arrow marked with the letter ‘N’ on the upper right side.
- This arrow shows the North direction. It is called the north line.
- With this moving clockwise we find other directions east, south and west called cardinal points.
- Other intermediate directions are: North-East (NE) South East (SE), South-West (SW) and North-West (NW). With these, we can locate any place more accurately.
- One can also know the directions with the help of the instrument called compass.
Locating Places on the Earth Class 6 Long Answer Questions
Question 1.
Why is globe considered the perfect representation of the Earth? Give reasons.
Answer:
A globe represents the three dimensional view of the Earth. Earth it is spherical in shape and can correctly represents the geography of the Earth shape of oceans, and continents correctly.
- It also shows there correct relation to one another as they are on the earth.
- The distances based on scale and directions of places are fairly correct on the globe.
- A globe gives us a better idea of parallels of latitudes and meridians of longitude.
- It helps us to understand how day and night occur and how seasons are caused.
Question 2.
What is standard time?
Answer:
Standard Time:
- Local time of a place is based on the longitude of that place. It means places situated on different meridians will have different local times.
- It creates much confusion and problem for people to function in a country.
- It is 1 hour and 45 minutes time difference in the local time between Dwarka (Gujarat) and Dibrugarh (in Assam).
- To solve these problems every country fixes its central meridian, which is considered the standard meridian of that country.
- The local time of this meridian is considered standard for the whole country. It is called standard time.
- In India, the longitude of 82 Vi° E (82° 30° E) is treated as the standard meridian.
- The local time of this meridian is followed all over the country.
- This is known as Indian Standard Time (IST ).
- Through an international agreement, the local time of all places is linked to the Greenwich Mean Time (GMT).’ Different places have different times.
Question 3.
Look: at the map (See NCERT Page 18)
1. What is the value of (degree) of ‘Madhya rekha’?
2. Give names of any 5 cities which according to ancient texts were on the rekha.
3. Why are some cities marked away from the ‘Madhya rekha’?
4. Look at the atlas and write down the approximate latitude and longitude of Delhi, Mumbai, Kolkata, Bengaluru, Chennai and Kanyakumari.
5. Identify which of the following places would be hairing the some local time. Give reason.
Answer:
- 75.8°E.
- Kurukshetra, Rohitaka [Rohtak, Malavangara Nagar] Ujjaini/ Ujjain and/Mahishmati/Mahe- shwar.
- That is because measuring longitude required accurate time keeping which was not as precise then as it is today.
- Delhi – 28°N 77°E
Mumbai – 19°N 72°E
Kolkata – 22°N 88° E
Bengaluru – 12°N 77°E
Chennai – 13°N 80°E
Kanyakumari – 8°N 77°E - Delhi, Bengalu