THE WATER CYCLE AND WATER INSECRITY EXAM WITH QUESTIONS AND WELL VERIFIED ANSWERS [GRADED A+] ACTUAL EXAM 100%
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Module
THE WATER CYCLE AND WATER INSECRITY
Institution
THE WATER CYCLE AND WATER INSECRITY
THE WATER CYCLE AND WATER INSECRITY
EXAM WITH QUESTIONS AND WELL VERIFIED
ANSWERS [GRADED A+] ACTUAL EXAM 100%
What is meant by a store and a flow? - ANS---A store is where water is
held for varying amounts of 'residence' time. A flow is the movement of water
between stores
Identify the t...
THE WATER CYCLE AND WATER INSECRITY
EXAM WITH QUESTIONS AND WELL VERIFIED
ANSWERS [GRADED A+] ACTUAL EXAM 100%
What is meant by a store and a flow? - ANS✔✔---A store is where water is
held for varying amounts of 'residence' time. A flow is the movement of water
between stores
Identify the three largest stores in size order - ANS✔✔---1. The oceans
2. Icecaps and glaciers
3. Groundwater
Which two water stores are non-renewable, and why? - ANS✔✔---1. Fossil
water: old, deep groundwater from former wetter periods
2. Losses from the cryosphere: melting of ice as a result of global warming
Why is the hydrological cycle a closed system? - ANS✔✔---There are no
external inputs and outputs. It is a self-contained entity. Some might argue solar
energy, which drives the cycle, is an input
, What is the water budget, and why does it vary from place to place? -
ANS✔✔---The water budget of a place is the difference between the amount
of water gained from precipitation and the amount lost as a result of
evapotranspiration. The budget is in surplus when precipitation exceeds
evapotranspiration. It is in deficit when the situation is reversed. It varies from
place to place because climate (precipitation and temperature) does
Distinguish between blue and green water - ANS✔✔---Blue water is stored
in rivers, lakes and groundwater in liquid form — a visible part of the
hydrological cycle. Green water is water stored in the soil and vegetation — an
invisible part of the hydrological cycle
What are the main inputs of a drainage basin system? - ANS✔✔---
Precipitation. Also possibly water from a tributary basin
What are the main outputs of a drainage basin system? - ANS✔✔---
Evaporation, transpiration and river discharge
The steepness of slopes will affect the rate of runoff — the steeper the slope,
the faster the rate
Distinguish between interception and infiltration - ANS✔✔---Interception is
the process by which water is stored in the vegetation. Infiltration is the process
by which water soaks into, or is absorbed by the soil
How does relief affect the inputs and outputs of a drainage basin? -
ANS✔✔---Altitude will affect the precipitation input (orographic rain or snow).
How does geology affect the flows in a drainage basin? - ANS✔✔---Geology
affects the balance of the flows by which precipitation reaches a river. Where the
geology is hard and impermeable (e.g. granite), there will be much surface
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