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Earth Alive Class 5 Chapter 2 Earth Hemisphere

Earth Alive Class 5 Chapter 2 Earth Hemisphere

 

if you are looking for Class 5 Earth Alive Chapter 2 Earth Hemisphere solutions then you are at the right place. Here we are providing solutions as well as additional QA / Important Notes.

 

Write whether the statements are true or false. 

  1. The Tropic of Capricorn passes through 23°N.
  2. The longitudes are farthest apart at the poles.
  3. The Earth takes four minutes to rotate one degree.
  4. Parallels help us in calculating time of a place.

 Solution

False. The Tropic of Capricorn passes through 23.5°S, not 23°N.

False. The longitudes are farthest apart at the equator, not at the poles.

True.

False. Longitudes, not parallels, help us in calculating the time of a place.

 

 Answer the questions in brief.

 

Q: Write about the numbering system of the parallels and meridians.

The numbering system of parallels starts with 0° at the equator and increases towards the poles. Parallels are numbered from 0° to 90°, with N for North and S for South appended to the numbers. Meridians are numbered starting from 0° at the prime meridian, with E for East and W for West appended to the numbers.

 

Q: Write about the distinct features of the parallels.

Parallels are circles drawn on the Earth’s surface running east to west. They decrease in size as one moves away from the equator towards the poles. Parallels are equidistant from each other, except at the poles where they converge to points. They never intersect or touch each other.

 

Q: Write about the distinct features of the meridians.

Meridians run from north to south and are farthest apart at the equator, gradually converging towards the poles. There are 360 meridians in total. They intersect at the poles and are used to determine a location’s east-west position on Earth.

 

Q: How do we calculate time with the help of meridians?

Time is calculated with the help of meridians by dividing the Earth’s circumference (360°) by 24 hours, resulting in each hour corresponding to 15 degrees of longitude. Each degree of longitude corresponds to a time difference of approximately four minutes. So, by knowing the longitude of a place, one can calculate its local time.

 

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