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Marine Biology || All Correct.
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  • Marine Biology
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  • Marine Biology

How much of the Earth's surface is covered by ocean? correct answers 71%. 97 percent of the Earth's water. Less than 1 percent of the Earth's water is fresh water, and 2-3 percent is contained in glaciers and ice caps. The oceans contain 99 percent of the living space on the planet. Where is t...

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  • December 15, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • how much of the earths surface is covered by ocea

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  • Marine Biology
  • Marine Biology

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Marine Biology || All Correct.
How much of the Earth's surface is covered by ocean? correct answers 71%.
97 percent of the Earth's water. Less than 1 percent of the Earth's water is fresh water, and 2-3
percent is contained in glaciers and ice caps. The oceans contain 99 percent of the living space
on the planet.

Where is the largest percentage of the world ocean found? correct answers southern hemisphere

How old is the Earth? correct answers 4.543 billion years

What causes the Earth's magnetic field? correct answers hot spinning liquids.
This flow of liquid iron generates electric currents, which in turn produce magnetic fields.

How do oceanic trenches form? correct answers plate sinks beneath another plate.
Earth's tectonic plates converge and the older, denser plate is pushed beneath the lighter plate and
deep into the mantle, causing the seafloor and outermost crust (the lithosphere) to bend and form
a steep, V-shaped depression.

What is the continental shelf and where is it located? correct answers shallow part of the
continent, close to land where light can reach it

What is the mid-ocean ridge? correct answers an undersea mountain chain where new ocean
floor is produced at a divurgent plate boundary

submarine mountains that run through the marine basin

What is it called when new seafloor is created? correct answers seafloor spreading.
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is
formed through volcanic activity and then gradually moves away from the ridge.

Where is the most biologically rich part of the ocean? correct answers continental shelf

Describe the scientific method. correct answers procedure to learn about the world
The Scientific Method is an organized way of answering a science question. While different
teachers and scientists have different versions of the Scientific Method, here are the typical six
parts:

Purpose- What do you want to learn?
Research- Find out as much as you can.
Hypothesis- Try to predict the answer to the problem. Another term for hypothesis is 'educated
guess'.
Experiment- Design a test or procedure to confirm or disprove your hypothesis.
Analysis- Record what happened during the experiment. Also known as 'data'.
Conclusion- Review the data and check to see if your hypothesis was correct.

, Describe how an experiment is organized. correct answers artificially created structure to test
hypothesis

Purpose- What do you want to learn?
Research- Find out as much as you can.
Hypothesis- Try to predict the answer to the problem. Another term for hypothesis is 'educated
guess'.
Experiment- Design a test or procedure to confirm or disprove your hypothesis.
Analysis- Record what happened during the experiment. Also known as 'data'.
Conclusion- Review the data and check to see if your hypothesis was correct.

Which part of an experiment is manipulated? correct answers independent variable

Which two features do oceans regulate? correct answers weather and climate.
The oceans regulate global temperatures, shape weather and climate patterns, and cycle elements
through the biosphere.

Why does water have unique characteristics? correct answers because of it's ability of hydrogen
bonding

Why is a great amount of thermal energy required for water to evaporate? correct answers to
break the hydrogen bonds between water molecules.
The boiling point of water is the temperature in which there is enough energy to break the
hydrogen bonds between water molecules.

How is water removed from the oceans? correct answers evaporation and freezing

What is the average salinity of the ocean? correct answers 3.5 percent

Which are the two most common ions found in seawater? correct answers Sodium and Chlorine
which form salt

Why doesn't seawater freeze at the same temperature as fresh water? correct answers because of
the salt in it

Why don't lakes freeze all the way through in the cold winter? correct answers when some water
freezes, it floats to the top making a frozen sleet and insulates the rest of the body of water

Which color of light penetrates deepest into the ocean? correct answers blue or blue green

What is the Coriolis Effect? correct answers the way the earth's rotation makes winds in the
Northern Hemisphere curve to the right (counterclockwise) and winds in the southern
hemisphere curve to the left (clockwise)

What are the trade winds and where are they located? correct answers the surface air that flows
from these subtropical high-pressure belts toward the Equator is deflected toward the west in

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