Changes to Vegetation, Soil and Water as a Result of Human Activity
What is deforestation?
The cutting down of trees and other plant life in a forest
Clearing of plants and planting the same amount of trees
The cutting down of only trees in a forest
May of the worlds forest have been cleared for crop growing, grazing, herding, and for timber.
True
False
What is there a strong link to deforestation?
Urbanisation
Poverty
Climate Change
Farmers make many changes to the natural environment in order to ___________
Build houses and grow crops
Make room for buildings
Grow crops and raise farm animals
Forests are cut down, burnt and replaced with a single plant species; wetlands and swamps are drained; and vast areas of native grasses are replaced with crops such as wheat and rice.
False
Right
What is soil degradation?
The deterioration of soiI condition caused by human activity.
When soil quality is above average
The deteriorations of soil condition caused by animals
Soils are being degraded to such an extent that the amount of food that can be grown is in decline.
True
False
What 2 alterations have humans done to biomes?
Over fishing,
Poor farming
Deforestations
Global Climate
What 2 alterations have humans done to biomes
Industrialisation has caused greater demands on environments to provide fibres, fuel and raw material
True
False
Civilisation have only developed when there is enough food to support them and the physical climates are suitable
True
False
Indigenous people lived in harmony with nature. As society became more sophisticated, the relationship with nature changed. Why is this?
Over _____ of the worlds land area that is considered habitable has now been converted into ________ or _________ to provide F_____, fibre _______ and fuel to world's people
Which three regions have converted the most grassland (source 4)
North America Pairire
South American Savanna
Asian steppe
Sub-Saharan African Grasslands
South-west Australian grasslands
What is the most important resource?
Earth
Water
Fire
Air
Food
The water that is used on farms eventually flows through soil and rocks into nearby streams and rivers.
True
False
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