what would happen if there is no day and night
Answers
There would be many effects on earth if either the sun or moon did not exist. Even the things that we take for granted such as the seasons depend on the sun and are affected by the moon.
If the sun went out the earths temperature would drop to below O degrees C in less than one week however the earth itself would take a while to cool down completely to the temperature of the interstellar medium (between -170 and -260 degrees C).
All plants would die as they would not be able to produce any food. Plants rely on the sun for photosynthesis. Therefore all herbivores would die. This would cause other effects in the food chain leading to the extinction of all living things.
Without a moon the earth would have no light at night.
There is also evidence that the moon stabilises the earths tilt. If there was no moon then the tilt of the earths axis may be different causing different and other new seasons. There is also a theory that if there was no moon the earth wouldn’t have a tilt. Therefore around the equator it would always be summer and at the poles it would always be winter. In between it would be autumn or spring.
The moon also controls the tides. If there were not tides the currents may change, there may also be more flooding.
Nocturnal animals will also be effected. Some animals only hunt in the night and they sleep during the day. These animals rely on the light of the moon. Without the moon they would not be able to see. Animals who live near the sea or on the beaches would also be effected because of the inconsistencies in the tides.
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