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| Description: Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s axis causes the Northern Hemisphere to receive more intense sunlight and have longer days in summer than in winter. D Spring equinox (March). Sun’s direct rays fall on equator; length of day equals that of night. A Summer solstice (June). Northern Hemisphere is most tilted toward sun; has its longest day. \iflnter solstice (December). Northern B Autumn equinox (September). Hemisphere is most Sun’s direct rays fall on equator; tilted away from sun; length of day equals that of night. has its shortest day. Picture Stats: Views: 87 Filesize: 372.54kB Height: 955 Width: 1578 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47267 |