Sedimentary Rocks with Marine Fossils Are Exposed at the Top

question 7

Multiple Choice

Sedimentary rocks with marine fossils are exposed at the top of Mt.Everest.Which scientists would make most use of this observation in their study?

• A)Meteorologists,because they could use the fossils as a guide to ancient climates
• B)Geologists,because their elevation is related to physical geology and fossils are related to Earth history
• C)Oceanographers,because the fossils can tell us about periods when the earth was covered with water to the height of Mt.Everest
• D)Astronomers,because they can study how life came from outer space to Earth

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Definitions:

Insulator

A material or device that resists the flow of electric current, used to prevent undesired current flow.

Cooling

The process of removing heat from an object or space, often to maintain a desired temperature.

Phase Current

The electric current flowing through one phase of a multi-phase system, like in three-phase electrical systems.

Resistive Load

A type of electrical load in which the current flowing through it is directly proportional to the voltage across it, in accordance with Ohm's law.