Question

1. What is an age-structure diagram and what are they used for? What was the Green Revolution? Explain the difference between renewable and non-renewable resources. Give an example of each one however; make sure your examples are NOT from the lecture notes. Name three endangered animal species in Florida.

Answer 1

Age structure diagrams are also known as population pyramids or age pyramids.It is diagramatic representation of distribution of population belonging to different age groups.Young population usually forms base of the pyramid.

Green revolution is notable increase in cereal grain production in India,Pakisthan,philippines ,mexico and other developing countriesduring 1960's and 1970's.This was due to introduction of hybrid varieties of wheat,rice and corn and also introduction of modern agricultural methods including irrigation and chemical fertilisers.

Non renewable sources of energy come from a source that has limited supply.While renewable sources of energy come from source which has unlimited supply.In other terms renewable sources of energy never run out.Solar energy,wind energy are examples of renewable sources of energy,while fossil fuels are non renewable sources of energy.