Topic 1 - The Conditions for Life on Earth Glossary

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Earth's magnetic field
The energy force that deflects harmful solar radiation.
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Insolation
Incoming sunlight.
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Ambient gases
The surrounding gases.
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Thermophilic
Heat-loving, such as the bacteria that live around volcanic vents.
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Photolysis
The splitting of molecules by light.
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Biosphere
All the living organisms of the planet.
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Lithosphere
The potentially exploitable outer layers of the Earth: the crust and upper mantle.
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Greenhouse gas
A gas that absorbs infrared light and produces heat.
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Hydrosphere
All the solid, liquid and gaseous water of the planet.
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Specific heat capacity
A measure of the amount of heat needed to heat up a particular quantity of a substance.
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Transpiration
The loss of water from plants by evaporation through stomata.
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Ozone
Triatomic oxygen that absorbs Ultra Violet light.
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Anaerobic bacteria
Bacteria that do not require oxygen to respire. Many produce methane instead of carbon dioxide.
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Speed of rotation of Earth
The feature of Earth that produces daily fluctuations in light and temperature.
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Tilted axis of Earth's rotation
The feature of Earth that produces seasonal changes in weather.
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Other cards in this set

Card 2

Front

Incoming sunlight.

Back

Insolation

Card 3

Front

The surrounding gases.

Back

Preview of the back of card 3

Card 4

Front

Heat-loving, such as the bacteria that live around volcanic vents.

Back

Preview of the back of card 4

Card 5

Front

The splitting of molecules by light.

Back

Preview of the back of card 5
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