GEOLOGY

Detailed explanation-1: -The earth’s spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth’s axis points towards the sun, it is summer for that hemisphere. When the earth’s axis points away, winter can be expected.

Detailed explanation-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.

Detailed explanation-3: -Sometimes Earth tilts toward the Sun, which is when summer occurs. In the winter, Earth tilts away from the Sun. In North America, around June 21, Earth tilts on its axis toward the Sun. This is called the summer solstice, and it is when the Northern Hemisphere has the most daylight of any time of the year.

Detailed explanation-4: -Earth’s seasons are NOT caused by changes in the distance the Earth is from the Sun during the year (the Earth is NOT closer to the Sun in summer and further from the Sun in winter)! The cause of Earth’s seasons is due to the tilt of our planet on its axis.

Detailed explanation-5: -More tilt means more severe seasons-warmer summers and colder winters; less tilt means less severe seasons-cooler summers and milder winters. It’s the cool summers that are thought to allow snow and ice to last from year-to-year in high latitudes, eventually building up into massive ice sheets.