Natural Soil-forming Processes (Leaving Cert Geography): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
How many fundamental processes shape soil formation?
How many fundamental processes shape soil formation?
Eight processes
What percentage of most soil types is made up of parent materials from weathering?
What percentage of most soil types is made up of parent materials from weathering?
45%
By what percentage does water expand when it freezes during freeze-thaw weathering?
By what percentage does water expand when it freezes during freeze-thaw weathering?
9%
What name is given to loose rock fragments created by physical weathering?
What name is given to loose rock fragments created by physical weathering?
Scree
Which chemical weathering process dissolves limestone using carbonic acid in rainwater?
Which chemical weathering process dissolves limestone using carbonic acid in rainwater?
Carbonation
What type of fertile soil is created by river deposition along floodplains?
What type of fertile soil is created by river deposition along floodplains?
Alluvial soil
Which soil type is poorly drained, sticky and created by glacial deposition?
Which soil type is poorly drained, sticky and created by glacial deposition?
Boulder clay soil
How long does organic matter decomposition take in tropical regions?
How long does organic matter decomposition take in tropical regions?
6-12 months
What mineral resists acidic water in podzolisation, giving soil a grey colour?
What mineral resists acidic water in podzolisation, giving soil a grey colour?
Quartz
What causes the rusty red appearance of latosols in tropical regions?
What causes the rusty red appearance of latosols in tropical regions?
Iron oxide
What process moves calcium carbonate upward during calcification?
What process moves calcium carbonate upward during calcification?
Capillary action
What percentage of irrigated farmland globally is affected by salinisation?
What percentage of irrigated farmland globally is affected by salinisation?
20%