Chapter. 4 Flashcards
(37 cards)
Economic Activities are?
What people do to make a living
3 economic activities groups
Primary, secondary, tertiary
Primary economic activities
Are jobs that work directly with the Earth’s rocks, soils and water
Secondary economic activities are
Jobs that involve making or manufacturing something
Tertiary economic activities are
Jobs that involve providing a service that is useful to others
Natural resources
Are things in the natural world which are useful to people such as land, rivers and seas.
People have been using these natural resources for thousands of years for their own personal benefit.
What are the two types of natural resources
Renewable resources and non’renewable resources
Renewable resources
Can be used over and over again
They are also called infinite resources.
If you look after then and use them in a sustainable way, they will not run out.
Non renewable resources
Can only be used once. Each time a non-renewable resource is used, less of that resource is left for the future.
Non-renewable resources are also called finite resources.
What happens when we use a natural resource
When we use a natural resource it is called exploitation. If we over-exploit natural resourcesthey might not be available for future generations. This sort of exploitation is unsustainable.
What 4 topics can the water cycle be broken down into?
Evaporation, condensation, precipitation, run off
What is water
A limited natural resource that is constantly recycled to provide a steady supply
Evaporation
Evaporation occurs when the sun heats up water and turns it into water vapour
Condensation
The water vapour rises into the air, as it rises it cools and condenses into tiny droplets which come together to form a cloud. The wind blows these clouds towards the land.
Precipitation
Occurs when so much water has condensed that the air cannot hold it anymore. The clouds get so heavy and the water falls back onto the Earth in the form of rain, hail, dew, sleet or snow.
Run off
Occurs when the water falls back onto the earth as precipitation and may fall back into oceans, lakes, or rivers. Or it may end up on land which will become apart of the groundwater that plants and animals use to drink off of or it may run off the soil into oceans, lakes or rivers where the cycle starts all over again.
Irrigation
Is the artificial watering of grounds typically used for watering crops in areas of drought.
Irelands fishing history
Ireland has many fishing ports mainly because we are located beside the Atlantic ocean. The shallow waters of the continental shelf create ideal conditions for fish to live and grow. There is also a lot of plankton that fish and whales feed on
Plankton
Small microscopic organisms that fish and whales feed on
Reasons for overfishing
No closed fishing season so fish could be caught all gear round leaving no time for them to repopulate.
Lack of quotas meant there was no limit to the amount of fish a trawler could catch.
Mesh sizes are too small leading to small, underdeveloped fish being caught reducing the opportunity for fish to repopulate.
How has the irish government and the eu try to reduce fish overexploitation
The creation of conservation zones around Ireland
The introduction of yearly quotas for fish catches
A ban of fishing of some endangered species.
A shortening of the fishing season for some types of fish.
Conservation zones
Zones where only irish residents can fish at set times of year instead if the eu as well, and as well as fishing all year around
Agriculture
Farming
Inputs
Things needed to be put onto a farm. Eg. cattle
