Why is the Tropic of Cancer 23 degrees?

It should be: 23° 26′

The Tropic of Cancer is the northernmost latitude (approximately 23° 26′ N) where the sun can reach directly each year. It is located between the tropics and. the northern temperate zone The dividing line between the tropics and the northern temperate zone. The position of the Tropic of Cancer is not fixed. According to scientists' observations, the Tropic of Cancer moves southward by about 14 meters every year.

As the Earth rotates on its axis, it also rotates around the sun from west to east. The Earth's orbit is an ellipse close to a perfect circle. The plane formed by this ellipse is called the orbital plane, also called the ecliptic plane. The earth rotates on its axis and revolves around the sun. During this process, the earth's axis is not perpendicular to the orbital plane of revolution (plane of the ecliptic), but is tilted, with an angle of approximately 66°34′. The direction of inclinationison of the earth's axis remains unchanged (translation) in space, which means that the equatorial plane and the ecliptic plane do not coincide (not parallel), but are in a state of inclination. The angle is the supplementary angle of 66°34′, i.e. i.e. 23°26'. This angle is called the yellow-red angle. The line of latitude tangent to the plane of the ecliptic on the great circle on the Earth's surface is the Tropic of Cancer. The Tropic of Cancer is located in the Northern Hemisphere and the Tropic of Cancer is located in the Southern Hemisphere.

A solar water heater must be installed somewhere in the Tropic of Cancer. In order to obtain more solar heat and improve the efficiency of its use, it must be adjusted according to changes in the height of the sun. the seasons

The southern temperate zone – between the Tropic of Capricorn and the Antarctic Circle. North temperate zone - between the Tropic of Cancer and the Arctic Circle.

The Earth is a large sphere and the angle of the sun is different at different latitudes. Some places are exposed to direct sunlight, some are exposed to oblique sunlight, and some are not exposed to sunlight all day or even for months. Therefore, different places receive more or less solar heat, and there are differences between hot and cold conditions. People divide the Earth's surface into five zones based on the amount of heat each place receives from the sun: the tropics, the northern temperate zone, the southern temperate zone, the northern glacial zone, and the southern glacial zone. south.

As we all know, when the Earth rotates, it constantly revolves around the sun. During the Earth's revolution, the sun's rays sometimes shine directly on the northern hemisphere, sometimes directly on the southern hemisphere, and sometimes directly on the equator. In the area locatedBetween the Tropic of Cancer and the south, the sun shines directly twice a year, so this area receives the most solar heat in the world, thus forming the tropics on earth.

In regions north of the Arctic Circle and south of the Antarctic Circle, the sun always shines above the horizon for a period of time each year, becoming a sun that never sets . However, the sun's rays are very intense. oblique, and the ground receives less heat. Very little and there is a period of long continuous nights, so the climate here is cold, forming a cold zone on the earth. The area from the Arctic Circle to the North Pole is called the Northern Glacial Zone; the area from the Antarctic Circle to Antarctica is called the Southern Glacial Zone.

Between the Tropic of Cancer and the Arctic Circle, and between the Tropic of Cancer and the Antarctic Circle, these two areas receive less solar heat than the threespades and more than the cold zone, making them temperate zones. The area between the Tropic of Cancer and the Arctic Circle is called the northern temperate zone; the area between the Tropic of Cancer and the Antarctic Circle is called the southern temperate zone.

Direct sunlight gets the most solar energy

When the earth revolves around the sun, the earth's axis forms a fixed anglee of approximately 66.5° with the plane of the Earth's orbit, which makes the angle of the sun's rays The direct point moves regularly between the Tropic of Cancer and the Tropic of Cancer. When the sun's rays shine directly on the Tropic of Cancer, it is the summer solstice in the northern hemisphere. The area near the Tropic of Cancer receives the most solar energy. At this time, the length of day and night in the northern hemisphere. : the longest day and the shortest night, and the polar day phenomenon occurs north of the Arctic Circle. The southern hemisphere is opposite the northern hemisphere. The southern hemisphere has shorter days and longer nights. According to the meaning of the question.

So choose: A.