Answer the question - Geography STD 7 Questions - Vidyadip

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Question 11 Mark

Which of the following factors could be related with the change in the position of the shadow of the stick & the difference in the duration of daytime?
(i) Rotation of the earth
(ii) Distance between the earth & the sun
(iii) Revolution of the earth.
(iv) The axis of the earth.

Answer

(i) Revolution of the earth
(ii) The axis of the earth.

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Question 21 Mark

What did you observe about the position of the sun at the horizon at the time of sunrise & sunset?

Answer

(i) After 21st June the position of the sun at the horizon at the time of sunrise & sunset shifted southwards.
(ii) After 22nd December the position of the sun at the horizon at the time of sunrise & sunset shifted north wards.

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Question 31 Mark

What could be the reason for the change in the shadow of the stick?

Answer

There is a change in the shadow of the stick because there is a change in position of the sunrise & sunset.

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Question 41 Mark

Bring out the differences between the duration of daytime in the months of June, September & December.

Answer

The duration of day is around 13 hours in the month of June. It decreases to around 12 hours in the month of September. It is around 11 hours in the month of December.

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Question 51 Mark

What could be the reason behind it?

Answer

The duration of day is 12 hours in the month of September because both the hemispheres of the earth are at equal distance from the sun & the equator receives perpendicular rays of the sun.

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Question 61 Mark

In which month the duration of the day was around 12 hours?

Answer

The duration of the day was around 12 hours in the month of September.

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Question 71 Mark

What is Uttarayan?

Answer

The period in which (from 22nd December to 21st June) the position of the rising sun keeps on moving towards the north is called as Uttarayan.

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Question 81 Mark

What do you mean by Dakshinayan?

Answer

The period in which (from 21st June to 22nd December) the position of the rising sun keeps on moving towards the south is called as Dakshinayan.

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Question 91 Mark

What are the factors that influence the seasons?

Answer

The changes in the atmosphere, vapour in the air, the wind and the precipitation influence the seasons.

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Question 101 Mark

Which animals are found in the polar region of the northern hemisphere?

Answer

In the polar region of the northern hemisphere animals like reindeer, polar bears, Arctic foxes, etc are found.

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Question 111 Mark

Which living creatures are found in the Antarctic region?

Answer

Birds like penguins, fish like seal and animals like walruses are found in the Antarctic region.

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Question 121 Mark

Name the four seasons of Europe and North America.

Answer

The four seasons in Europe and North America are summer, autumn, winter and spring.

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Question 131 Mark

How have seasons been decided?

Answer

Seasons have been decided on the basis of the duration of sunlight, equinoxes and solstices.

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Question 141 Mark

What is Equinox?

Answer

On 21st March and 23rd September, the north pole and the south pole are at the same distance from the earth due to which the daytime & night time are of equal duration every where on earth. This is called Equinox.

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Question 151 Mark

What is the apparent movement of the sun?

Answer

The movement of the sun towards the north or south in a year is called the apparent movement of the sun.

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Answer the question - Geography STD 7 Questions - Vidyadip