Chapter 1 Flashcards

0
Q

How did life, biosynthesis begin?

A

Theories only

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1
Q

Where did basic carbon compounds come from

A

Comets, meteors, asteroids, interplanetary dust

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2
Q

What do all living things have in common?

A

Water. Saline water. In all cells (blood, tears)

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3
Q

When will our sun die

A

5 billion years

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4
Q

How old are earth and oceans

A

Earth: 4.6 billion
Oceans: 4 billion

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5
Q

Percentage of water is

A

97.5 salt 2.5 fresh water

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6
Q

Marine geologists

A

Composition of earth, mobility of crust, history of earth

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7
Q

Physical oceanographers

A

Wave dynamics, currents, ocean atmosphere interactions

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8
Q

Chemical oceanographers

A

Oceans dissolved solids and gases

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9
Q

Marine biologists

A

Nature and distribution of marine organisms

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10
Q

Stars change helium and hydrogen into what?

A

Heavier elements

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11
Q

How was ocean formed?

A

Water vapor in earths outer layers escaped to surface through volcanic activity during planets youth. Vapor cooled and condensed to form the ocean

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12
Q

Earths heavier elements came from

A

The death of ancient stars

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