Chapter 7 - resources Flashcards
Why can trees be renewable and non-renewable resources
Some trees can grow back in a lifespan, but some are many hundreds of years old
When are natural resources useful
In their natural form
Definition of a resource
A resource is any substance that is needed and useful to a living organism
what is the lithosphere used for
To produce materials, generate energy and develop agriculture
What is another word for minerals
Metal ores or when found in large amounts, mineral deposits
How is coal formed
From the remains of ancient swamps
How are oil and natural gas formed
From the remains of tiny marine organism
How are biofuels produced
From plants and animal waste
What is a trade off
A trade off is when the society has to acknowledge that we cannot survive without a resource and have to accept that we are damaging the environment by using it
What are the 3 ways to use non-renewable resources carefully
- reduce the number of resources used
- recycling plastics and other resources
- finding other resources
What is the process before extracting resources?
Information and opinions are gathered about the resource and the local environment so that choices and decisions can be made
Why are fossil fuels running out when they are still being formed
They are being used at a faster rate that they are being restored
