NATS 1570 Lecture Notes - Lecture 22: Solar System, Cambrian Explosion
14 Apr 2018
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Document Summary
Earth is the 3rd planet in the solar system. Our sun earth distance allows water to be liquid state. Distance does not affect our climate on earth. These days we are closer to the sun than we are in july. Seasons result from the 23. 5degrees of the earths tilted axis. Depending on the tilt we get more daylight. As we turn on our axis we turn toward and away from the sun. Earth has a single moon (very big compared to other moons and proportionally to the earth) If the moon gravity affects tides on earth. The moon also protects earth from comets and asteroids. Jupiter (the large planet) exerts sufficient gravitational force tp deflect comets and asteroids. As earth evolves the life that exists on it must evolve with it. We are finding similar timelines for other planets. Earth was formed through the collision of many smaller bodies. The moon formed when a large body.
