Imp Questions For All Chapters – Geography Class 7
How Seasons Occur – Part 1
Short Questions
1. What is rotation?
Answer: Rotation is the spinning of the Earth on its axis, causing day and night.
2. How long does the Earth take to complete one rotation?
Answer: The Earth takes 24 hours to complete one full rotation.
3. What is revolution?
Answer: Revolution is the movement of the Earth around the Sun, which takes 365¼ days to complete.
4. Why do we have different seasons on Earth?
Answer: Seasons occur due to the Earth’s tilt (23.5°) and its revolution around the Sun.
5. What is an axis?
Answer: The axis is an imaginary line passing through the North and South Poles, around which the Earth rotates.
6. Why do the lengths of day and night change?
Answer: The length of day and night changes due to the tilt of the Earth and its revolution around the Sun.
7. What is the Summer Solstice?
Answer: The Summer Solstice occurs around June 21st and is the longest day of the year.
8. What is the Winter Solstice?
Answer: The Winter Solstice occurs around December 22nd and is the shortest day of the year.
9. Why do the positions of sunrise and sunset change?
Answer: The positions of sunrise and sunset change due to the Earth’s revolution around the Sun.
10. What causes day and night?
Answer: Day and night occur due to the Earth’s rotation on its axis.
Long Questions
1. How does the Earth’s rotation cause day and night?
Answer: The Earth rotates from west to east, making different parts of the Earth face the Sun at different times. The part facing the Sun experiences day, while the other side experiences night.
2. Why does the duration of day and night change throughout the year?
Answer: Because of the Earth’s tilt and revolution, different regions receive varying amounts of sunlight at different times of the year, making days longer in summer and shorter in winter.
3. What is the difference between rotation and revolution?
Answer: Rotation is the Earth’s spinning movement on its axis, causing day and night, while revolution is the Earth’s movement around the Sun, causing seasonal changes.
4. Why don’t all places on Earth receive the Sun’s rays perpendicularly?
Answer: Due to the Earth’s spherical shape and tilted axis, the Sun’s rays fall directly near the equator but at an angle near the poles, causing uneven heating and seasonal variations.
5. How do the positions of sunrise and sunset change throughout the year?
Answer: As the Earth moves around the Sun, the position of the Sun appears to shift northward or southward, leading to changes in sunrise and sunset timings throughout the year.
6. How does the Earth’s tilt affect seasons?
Answer: When the Northern Hemisphere is tilted toward the Sun, it experiences summer, while the Southern Hemisphere experiences winter, and vice versa, creating different seasons.
7. What happens during the Summer Solstice?
Answer: During the Summer Solstice (June 21st), the Sun is at its highest position, leading to the longest day and shortest night of the year in the Northern Hemisphere.
8. What happens during the Winter Solstice?
Answer: During the Winter Solstice (December 22nd), the Sun is at its lowest position, leading to the shortest day and longest night in the Northern Hemisphere.
9. Why do polar regions experience six months of day and night?
Answer: Due to the Earth’s tilt, during summer, the poles receive continuous sunlight for six months, and during winter, they remain in darkness for six months.
10. How does the changing duration of day and night affect daily life?
Answer: In summer, longer daylight hours allow more outdoor activities, while in winter, shorter days reduce working hours and affect daily routines in many regions.
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