Untitled Flashcards Set

Only ____% of the water on Earth is freshwater.

2.5

68.7% of freshwater is stored in glaciers and ____ sheets.

ice

The remaining 1.3% of freshwater is in rivers, soil moisture, ____ and the atmosphere.

lakes

The hydrological cycle is a ____ system.

closed

Stores are places where water is held for some time, such as water in the ____ in the form of water vapour.

atmosphere

Aquifers are permeable rocks such as limestone and ____ which can hold water.

sandstone

Evaporation is the change of water from a liquid to a ____ due to heat from the sun.

gas

The water flow from the river to the soil is known as ____

infiltration

The migration of meanders leads to the formation of the ____

floodplain

When materials are dissolved in the river water, this process is called ____.

solution

The main river hazards are flooding and ____

erosion

In lowland areas, ____ erosion is dominant, leading to meanders.

lateral

The ground becomes saturated, leading to high levels of overland flow because the water cannot ____.

infiltrate

Flood prediction is used to manage ____

flooding

A flood hydrograph shows the changes in river discharge after a ____ event.

storm

Deltas are formed when streams flow into standing bodies of ____

water

The heaviest material is deposited first, creating what is known as the ____.

bedload

Floodplain zoning means that only certain land uses are allowed on the ____, reducing the risk.

floodplain

The Ganges flows through India and Bangladesh, where it becomes the river ____

Padma

The population living within the area drained by the Ganges is over ____ million people.

650

Waterfalls form when there is a drop in the river bed from one ____ to another.

level

Vertical erosion is dominant in the upper course of the river, increasing the ____ of the river and valley.

depth

The flow of water at entry and exit from the meander will be slower, leading to ____.

deposition