Systems & Ecosystems (Leaving Cert CASD): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How many main Earth systems have scientists identified?
How many main Earth systems have scientists identified?
Five
What percentage of Earth's water is saline (salty)?
What percentage of Earth's water is saline (salty)?
96.5%
Approximately what percentage of Earth's fresh water is frozen in the cryosphere?
Approximately what percentage of Earth's fresh water is frozen in the cryosphere?
75%
What is the approximate temperature at Earth's core?
What is the approximate temperature at Earth's core?
6,000°C
Which gases make up most of the atmosphere?
Which gases make up most of the atmosphere?
Nitrogen and oxygen
Which Earth system forms the solid foundation of our planet?
Which Earth system forms the solid foundation of our planet?
Geosphere
What are non-living components like water, air, and sunlight called in the biosphere?
What are non-living components like water, air, and sunlight called in the biosphere?
Abiotic factors
What term describes the variety of life in the biosphere?
What term describes the variety of life in the biosphere?
Biodiversity
What happens when changes occur in one Earth system?
What happens when changes occur in one Earth system?
They always affect the other systems
Where were fossil fuels originally formed millions of years ago?
Where were fossil fuels originally formed millions of years ago?
Within Earth from dead organisms