This document contains topics and questions about water and aquatic food production systems. It includes definitions for terms like turnover time, hydrological flows, precipitation, evapotranspiration, and more. It also outlines how interception loss and evaporation rates vary and defines advection. There are sections about the relationship between human activities and their impacts on water systems, the role of salinity, temperature, and density in ocean circulation, and how access to fresh water varies globally and may be influenced by climate change. Diagrams are requested on the global water stores, hydrological cycle, and ocean circulation system.

1. Topic 4 – Water, aquatic food
production systems and societies
Draw an annotated diagram to demonstrate the global
water stores, include the percentages of each store
Define the following
Turnover time:
Hydrological flows:
Precipitation:
Evapotranspiration:
Interception loss:
Throughfall:
Stemflow:
Infiltration capacity:
Sublimation:

2. Outline how interception loss varies:
Topic 4 - Flows
Outline how evaporation rates vary:
Define advection:
Outline the relationship with the hydrological cycle:
Outline how and why infiltration rates vary
Construct a diagram of the hydrological cycle to show inputs,
outputs, flows and stores.
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3. Human
Activity
Description of activity Impact/s on water systems
Irrigation
Deforestation
Urbanisation
Topic 4 – Humans and the Hydrological Cycle
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4. Topic 4 Plan your answer to this question
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5. Topic 4 – Ocean Circulation
Outline the role of each of the following in
the ocean circulation system
Salinity:
Temperature:
Density:
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Describe the main ocean circulation system

6. Topic 4 - Oceans
Briefly outline the operation of Great Ocean Conveyor Belt
Define thermocline:
Define specific heat capacity:
Explain its role in ocean circulation patterns:
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7. Topic 4 – Fresh Water
Briefly outline why access to fresh water varies globally
Case Study: Access to Fresh Water
Briefly outline how climate change may influence rainfall patterns and access
to fresh water
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