Sci Quiz 4/9/25 Flashcards

1
Q

Deep within the ocean, temperatures are ______

A

Freezing

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2
Q

Near the hot water vents live creatures such as

A

Giant clam,red-tipped tube worm, spider-like crab

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3
Q

_____ are underwater mountains

A

Mid-ocean ridges

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4
Q

Sonars are devices that bounce sound waves off objects underwater than record _______

A

Echoes

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5
Q

T/F some mountains are hidden underwater

A

True

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6
Q

A _______ valley splits at the top of some mid ocean ridges

A

Steep-sided

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7
Q

Which american geologist studied mid ocean ridges

A

Harry Hess

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8
Q

How many steps are there to seafloor spreading

A

4

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9
Q

______ is a small submarine that scientists use to dive deep within the ocean

A

Alvin

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10
Q

By ______ into the ocean floor scientists are collecting rock samples

A

drilling

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