The answer is option C "Warm air rises as cooler, denser air falls." Convection is heat transfer between two objects for example a hot metal pot to a spoon. During convection hot air rises and cold air (or denser air) sinks.
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Answer:
Mid-ocean ridges are found in the sea floor at divergent boundaries because both plates are moving away from each other creating the opening for the lava to sleep up. Mid-ocean ridges are where sea floor spreading occur by lava seeping up to the surface of the opening and cooling therefore forming new ground and pushing older layers of ground further away.
Above a pH of 7, pepsin becomes irreversibly denatured. Pepsin was the first enzyme to ever be discovered, and it was discovered by <span>Theodor Schwann.</span>
