Australia is very diverse country. give 3 example of what makes it divers. (20-50 words)​

Three major contributors to Australia's demographic make-up are a diverse Indigenous population, a British colonial past and extensive immigration from many different countries and cultures.

Explanation:

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

it would be d). more resources must be obtained to attain that combination of goods and services