Look at Diagram Q3.
Describe the hydrological cycle within a drainage basin.
Worked Solution & Example Answer:Look at Diagram Q3 - Scottish Highers Geography - Question 3 - 2023
Step 1
Describe the main inputs
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Answer
The primary input into a drainage basin is precipitation, which can occur in the form of rain and snow. This water can either be absorbed by the soil or flow directly into the water bodies.
Step 2
Explain evaporation and transpiration
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Answer
When water is exposed to the atmosphere, some of it evaporates. Additionally, water vapor can be released into the atmosphere from vegetation through a process known as transpiration.
Step 3
Discuss water storage and movement
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Answer
Water can be stored on the surface in different forms, such as puddles and lakes. It may also infiltrate into the soil, where it becomes part of the groundwater flow.
Step 4
Describe drainage pathways
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Water may move over the surface as runoff or lateral flow and can flow through the soil as percolation, which contributes to the groundwater reservoir.
Step 5
Explain groundwater flow
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Water may also flow through the rocks as groundwater flow, eventually leading to rivers or lakes. This flow is crucial for maintaining ecosystems and water supplies within the drainage basin.
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