The main reason that Earth has seasons is Group of answer choices Earth has an elliptical orbit; it is further from the Sun in winter and closer in summer. Earth's axis tilted at 23.5 degrees to Earth's orbital plane around the Sun. Earth rotates once every 24 hours. Earth's axis wobbles significantly alternately pointing the hemispheres toward or away from the Sun

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Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.