Question

Subject: Geography
Answer the following questions

1) Define a circle of illumination.
2) Which motion of earth is associated with the changes in seasons ?
3) Why do season s change ? ( V. imp )
4) Why do the areas near the poles receive less heat ?
5) When do the longest day and the shortest night occur in the Northern Hemisphere ?
6) In which Hemisphere does Australia lie ?
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Answer 1

1. The imaginary line that separates light from the darkness and day from the night is known as the circle of illumination. ... The circle of illumination bisects the equator while the circle of illumination separates light from darkness and day from night, the axis is a line along which the earth rotates.
2. Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
3. The seasons change because of the axial tilt. “Plane of the ecliptic” in the diagram amounts to “plane of the orbit”. It’s called the ecliptic because it is on this plane that eclipses occur—but that’s better discussed in another (more relevant) thread.The earth’s axis is tilted from the perpenicular—the diagram says 23.5°, but more accurately it is 23.44°, if I may pick that nit. While the tilt qua tilt does not make a difference in the distance to the sun (in fact it’s nigh nothing compared to the eccentricity of the planet’s orbit), what does happen is that the sunlight is more direct (with the sun riding high overhead at midday) in the hemisphere tilted toward the sun (northern hemisphere in the diagram), and so that hemisphere has summer, and the opposite hemisphere has winter. Half an orbit later the situation is reversed. Spring and autumn are the transition seasons.
4. Because of the Earth's tilt the sun's rays strike the surface at a slant at the poles; they are less focused. This spreads the rays over a wide area. Because the sun's rays hit at a slant, the area is heated less.
5. December 2.In 2020, the December solstice comes on December 21 at 4:02 a.m. CST. That's on December 21 at 10:02 Universal Time (UTC). It's when the sun on our sky's dome reaches its farthest southward point for the year. At this solstice, the Northern Hemisphere has its shortest day and longest night of the year.
6. Southern Hemisphere. The Northern Hemisphere contains North America, the northern part of South America, Europe, the northern two-thirds of Africa, and most of Asia. The Southern Hemisphere contains most of South America, one-third of Africa, Australia, Antarctica, and some Asian islands.

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Answer 2

Answer:

1.The circle that divides the day from night on the globe is called circle of illumination.

3.season change due to the change in the position of the earth around around the sun.

6. southern hemisphere Australia lie

Explanation: