Systems & Ecosystems (Leaving Cert CASD): Flashcards
📚Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
How many main Earth systems?
How many main Earth systems?
Five
Geosphere
Geosphere
Solid foundation: rocks, Earth's interior & surface
Biosphere
Biosphere
Where life exists: all living organisms
Hydrosphere
Hydrosphere
All water on Earth in liquid form
Cryosphere
Cryosphere
Frozen water system: ice, glaciers, permafrost, snow
Atmosphere
Atmosphere
Layer of gases surrounding Earth
What % of Earth's water is saline?
What % of Earth's water is saline?
96.5%
What % of fresh water is in cryosphere?
What % of fresh water is in cryosphere?
Three-quarters (75%)
Biotic factors
Biotic factors
Living components: trees, fish, bacteria
Abiotic factors
Abiotic factors
Non-living components: water, air, sunlight