hydrosphere
oceans
energy resources
evolution
relationships in ecosystems
100
What percent of all water is fresh?

3%

100

What is the second zone in the ocean called?

Transition zone
100

What is energy?

Something that has the ability to make things move or change

100

What are fossils?

The remains of a prehistoric organism preserved in petrified form or as a mold or cast in a rock.

100

What is a symbiotic relationship?

The relation between 2 different species

200

What is the definition of salinity?

The measurement of dissolved salt in the water

200

What are hydrothermal vents?

Heated water being released on the ocean floor.

200

What is nonrenewable energy?

An energy source that is used faster than it can be replaced (example: fossil fuels)

200

What is Pangaea?

A super-continent predicted to have broken apart millions of years ago to create what we know today as land masses or continents

200

What is the relationship called if one organism is harmed and one benefits from it?

Parasitism

300

What is a underground layer that holds water called?

Auqifer

300

What is the food source for hydrothermal vents?

Bacterica

300

What is a renewable energy source?

Energy that can be replaced as it is used (examples: the sun)

300

What is law of superposition?

The law that the youngest rock layer is at the top while the oldest is at the bottom

300

What is the relationship called if one benefits and the other is not affected?

Commercialism

400

What is the difference between permeable and impermeable?

Permeable surfaces allow fluids and gases to pass through while impermeable surfaces do not

400

When going up or down in the ocean, which direction will salt levels increase?

It increases as you go down

400

Where does energy come from?

All living matter

400

What is relative dating?

The sequence in which events occurred 

400

What are limiting factors?

Conditions of the environment limit the growth of a species

500

Where is most freshwater located?

In ice caps and glaciers

500

How many currents does convection have?

It has 1 current

500

What are the 3 most used renewable energy sources?

Wind, solar, and water energy

500

What is radioactive dating?

Scientists use radioactive isotopes of elements to determine the age of a objects

500

What is co-existance?

Organisms living in the same place where they don't affect each other

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