Yeah, it is the most widely accepted theory about the origin of Universe. If you are interested in it, I will suggest reading “A Brief History of Time”, by Stephen Hawking.
The answer is a) manganese nodules
When the conquistadors arrived the Central Americas, the natives there at Central America believed the conquistadors as gods. So that is the reason why the Spaniards had effortless control over them at first.
What was even more effortless was how the conquistadors brought their own sickness to the natives from the ships and animals.
The pattern that ecologists is describing when referring to the latitudinal gradient would be <span>the </span>latitudinal<span> diversity </span>gradient or LDG. It is <span> one of the most widely recognized </span>patterns<span> in </span>ecology<span>. Hope this answers the question. Have a nice day.</span>