Every question from this NCERT chapter, with a detailed explanation.
With reference to the motions of the Earth, consider the following statements: 1. Rotation is the movement of the Earth on its axis. 2. Revolution is the movement of the Earth around the Sun in a perfectly circular orbit. 3. The axis of the Earth is a physical line connecting the North and South Poles. Which of the statements given above is/are correct?
With reference to the geometry of the Earth, what angle does the Earth's axis make with its orbital plane?
In the context of Earth's geometry, the term "Orbital Plane" refers to:
Consider the following statements regarding the "Circle of Illumination": 1. It is the circle that divides the day from night on the globe. 2. It coincides exactly with the axis of the Earth. Which of the statements given above is/are correct?
Which one of the following factors is primarily responsible for the phenomenon where only half of the Earth receives sunlight at any given time?
If the Earth did not rotate, which of the following conditions would prevail? 1. The portion of Earth facing the Sun would experience continuous day. 2. The portion away from the Sun would experience a moderate climate. 3. Life would not be possible in such extreme conditions. Select the correct answer using the code given below:
Consider the following statements regarding the seasons: 1. Seasons change due to the change in the position of the Earth around the Sun. 2. The Earth's axis changes its direction of inclination every six months. Which of the statements given above is/are correct?
On 21st June, the Northern Hemisphere is tilted towards the Sun. Which of the following phenomena is observed in this region?
The position of the Earth on 21st June is known as:
With reference to the Summer Solstice, consider the following statements: 1. The rays of the sun fall directly on the Tropic of Cancer. 2. The longest day and shortest night occur in the Southern Hemisphere. 3. The Southern Hemisphere experiences summer season. Which of the statements given above is/are correct?
Which of the following is the primary reason why polar regions receive significantly less heat compared to the equatorial region?
On 22nd December, which of the following latitudes receives direct rays of the Sun?
Consider the following statements about the Winter Solstice: 1. The South Pole tilts towards the Sun. 2. The Southern Hemisphere has shorter days and longer nights. 3. It occurs on 22nd December. Which of the statements given above is/are correct?
In which of the following countries does the festival of Christmas fall during the summer season due to its geographical location?
What is the term used to describe the position of the Earth when the whole Earth experiences equal days and equal nights?
On which of the following dates do direct rays of the Sun fall on the equator?
Consider the following statements regarding the Equinox: 1. Neither of the poles is tilted towards the Sun. 2. Direct rays of the Sun fall on the Tropic of Cancer. Which of the statements given above is/are correct?
On 23rd September, what season is experienced in the Northern Hemisphere?
Which of the following pairs is correctly matched regarding seasons in the Southern Hemisphere?
The daily motion of the Earth is primarily responsible for:
Which of the following factors combine to cause the change in seasons? 1. Rotation of the Earth 2. Revolution of the Earth 3. Inclination of the Earth's axis in a fixed direction Select the correct answer using the code given below:
During the Summer Solstice in the Northern Hemisphere, the nights are:
Which of the following statements best describes the relationship between the Circle of Illumination and the Earth's axis?
In which direction does the Earth rotate on its axis?
Consider the following statements regarding the Earth's axis: 1. It remains inclined permanently in the same position. 2. It points towards a different star every month. Which of the statements given above is/are correct?
Which of the following best explains why February has 29 days every fourth year?
On 21st June, the region south of the equator experiences:
In the context of the Earth's motions as described in standard geography texts, what does the term 'Earthday' refer to?
Which of the following statements is correct regarding the poles during the Summer Solstice (Northern Hemisphere)?
What is the approximate duration of continuous daylight at the North Pole?
What is the primary reason for the inclusion of a leap year in the Gregorian calendar?
Consider the following pairs of dates and events: 1. 21st June : Winter Solstice 2. 22nd December : Summer Solstice 3. 21st March : Equinox Which of the pairs given above is/are correctly matched?
During an Equinox, the days and nights are equal:
What happens to the shadow of an object at noon when the Sun is vertically overhead?
If you are standing in the Southern Hemisphere on 22nd December, what will be the length of the day compared to the night?
Which of the following statements is correct regarding the movement of the Earth?
On 23rd September, the Southern Hemisphere experiences:
The phenomenon of "continuous darkness" for about six months is experienced at:
Which of the following best describes the "Summer Solstice"?
Consider the following statements: 1. The Earth produces its own light due to its spherical shape. 2. The portion facing the Sun experiences day. 3. The portion away from the Sun experiences continuous twilight. Which of the statements given above is/are correct?
The "Winter Solstice" occurs when the Sun's rays fall vertically on the:
The change in seasons is caused by:
When it is spring in the Northern Hemisphere, what season is it in the Southern Hemisphere?
The imaginary line that makes an angle of 66½° with the orbital plane is:
Consider the following statements about the Earth's orbit: 1. It is the path of the Earth around the Sun. 2. It is circular in shape. 3. The Earth is inclined in the same direction throughout the orbit. Which of the statements given above is/are correct?
Which of the following dates is associated with the shortest night in the Northern Hemisphere?
The term "Equinox" literally implies:
Which of the following statements is correct regarding the duration of one revolution of the Earth?
Which of the following factors is responsible for the shorter duration of days during the winter season?
Consider the following statements about the position of the Earth on 21st March: 1. The North Pole is tilted towards the Sun. 2. Neither of the poles is tilted towards the Sun. 3. Direct rays of the Sun fall on the Equator. Which of the statements given above is/are correct?
On which date does the Southern Hemisphere experience its longest day?
If it is Autumn in the Northern Hemisphere, what season is it in the Southern Hemisphere?
Which term describes the motion of the Earth along its elliptical orbit around the Sun?
Which of the following statements is correct regarding the poles?
The "Tropic of Cancer" receives direct rays of the Sun on:
Consider the following statements: 1. The Earth takes 24 hours to complete one rotation. 2. The period of rotation is known as the Solar Year. 3. This is the annual motion of the Earth. Which of the statements given above is/are correct?
Which of the following is responsible for the continuous warmth on one side of the Earth if it did not rotate?
The "Winter Solstice" in the Northern Hemisphere corresponds to which season in the Southern Hemisphere?
Which of the following correctly describes the position of the Earth on 21st June?
What is the latitudinal position of the Tropic of Capricorn?
Which of the following statements is correct about the "Equinox"?
With reference to the Earth's axis and orbital plane, consider the following: 1. The axis makes an angle of 23½° with the vertical line from the orbital plane. 2. The axis makes an angle of 90° with the orbital plane itself. Which of the statements given above is/are correct?
In the context of the Earth's motion, what is the "Circle of Illumination"?