Seismologists know how to read seismographs and determine the meaning of the data (strength, area, etc.) for the earthquake.
Answer:
The sun is heavier than all of the planets, thus having more gravity
Explanation:
Because the sun is heavier, it exerts more gravitational pull towards itself, thus keeping all of the planets in orbit.
The answer is A. Remember that meiosis is like sexual reproduction and mitosis is like asexual reproduction. Hope this helps!