Using Resources Flashcards
What do humans use the earths resources to provide ?
Warm, Shelter, food and transport
What do natural resources provide?
Food, timber , clothes and fuels
What finite resources from the Earth , ocean and atmosphere used for?
The process to provide energy materials
Define potable water
Portable water is not pure water in the chemical sense, because it contains dissolved substances
What is water that is safe to drink called ?
Potable water
For humans, how should water be?
What should have sufficiently low levels of dissolve salts and microbes
What are some sterilising agents for water
Chlorine , ozone or ultraviolet light
How is desalination done by?
Distillation
Are metal ores limited in the earth
Yes sir 🙌🏿
Describe copper ores and their disadvantages
They are rlly scarce
What are some new ways of extracting copper form low-grade ores
Phytomining and bioleaching
What do the new methods of extracting copper form low-grade ores completely scrap
Traditional mining methods of digging, moving and disposing of large amounts of rock
What does phytomining include
It uses plants to absorb metal components as plants are harvested and then burned to produce ash that contains metal compounds
What does bioleaching include
It includes used bacteria to produce leachate solutions that contain metal compounds
What are life cycle assessments for
They occur out to assess the environmental impact of products in each of these stages
