Answer:
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds".
Zinc and petroleum would be the best aswer.
Answer:
a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
Answer: Marine transgressions
PF says "slow process of sea level rise called a marine transgression, thick, successive layers of sediments deposit along the edge of the continent"