Flashcards in Resources for Construction Materials Deck (11):
How long is the Biological Cycles
Typically 1 - 100 Years
How long is the Geological Cycle
Typically greater than 1 million years
What are the two classifications of material resources
Renewable & Non-Renewable
Give two examples of Biological cycles
Timber and Grasses
What are the two processes occurring regarding renewable materials.
Consumption & Replenishment
What are the interaction parameters to designate as Renewable and Non-Renewable.
The rate of consumption Rc, and the rate of replenishment Rr.
What happens if Rc exceeds Rr
The resource is depleting and is Non-Renwable
What happens if Rr exceeds Rc
The resource is renewable
What is the definition of Sustainability
The extent to which current needs can be fulfilled without compromising the needs of future generations.
What are the five elements of the Green Hierarchy.