What causes the seasonal changes in temperature on earth? because of earth's elliptical orbit, the earth is closer to the sun during summer and farther from the sun during winter. therefore, the hottest months are during the summer, when earth is closest to the sun. the sun shines more brightly and emits more energy during the summer, and shines less brightly during the winter. the tilt of earth's axis as earth orbits the sun causes longer days and more direct sunlight during summer, and shorter days and less direct sunlight in winter. the buildup of greenhouse gases during the summer traps more heat in earth's atmosphere, causing higher temperatures at earth's surface. in the winter, a thinner atmosphere leads to greater heat loss from earth's atmosphere and lower temperatures.

What causes the seasonal changes in temperature on Earth?

The tilt of Earth's axis as Earth orbits the Sun causes longer days and more direct sunlight during summer, and shorter days and less direct sunlight in winter.

Explanation:

The Earth's seasons are a result of the Earth's axis, which is an imaginary pole that goes through the center of the earth from "top" to "bottom". The Earth's axis is tilted and the current axial tilt is about 23.4º. Earth spins around this axis as it orbits the Sun, and the axis always points in the same direction, so throughout the year, different parts of the Earth get the sun's direct rays. In certain moments of the year, the Sun shines directly on the Southern Hemisphere, as the South Pole is tilted towards the Sun, and indirectly on the Northern Hemisphere (around December), causing Summer in the Southern Hemisphere, and Winter in the Northern Hemisphere. And around June, the opposite happens, the North Pole is tilted towards the sun, causing Summer in the Northern Hemisphere and Winter in the Southern Hemisphere. And when the Sun shines equally on both the Northern and Southern hemisphere, it causes Spring and Fall. At around March is causes Fall south of the equator and Spring north of the equator, and at around September, it causes Spring on the south and Fall on the north.

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