Using Resources Flashcards
What do humans use the earths resources for?
Fuel, building materials, food, clothing, medicines, etc.
What does sustainable development achieve?
Reduces the use of resources.
What is potable water?
Water that you can drink, water that has been treated (contains minerals)
Give three examples of a renewable recourse?
Timer, fresh water, food
How is chemistry improving sustainability?
Chemists can adapt processes to use lower amounts of finite resources and reduce damage to the environments.
Suggest one way in which chemistry is improving sustainability.
eg. Chemists have developed catalysts to reduce the amounts of energy required for certain industrial processes.
What are the four methods that can be used to extract copper from low-grade ores?
Bioleaching, Phytomining, Electrolysis and …
Other than recycling, how can glass bottles be used in a sustainable way?
Reusing the bottles.
What are Life cycle assessments (LCAs)?
Life Cycle Assessments show the total environmental cost of a product.
What is one problem of Life Cycle Assessments?
The effect of pollutants is harder to give a numerical value to.
What are examples of fresh water sources? Give two.
lakes, rivers, reservoirs, aquifers.
What are three examples of sources of waste water?
Agricultural systems, domestic systems or industrial processes.
Why is it important to treat waste water before releasing it into the environment?
Waste water may contain harmful chemicals.
What type of waste water could contain harmful chemicals?
Industrial waste water.
What two products can be obtained by the anaerobic digestion of sewage sludge?
Methane gas and digested waste.
