mostly low plateau with deserts, rangelands and a fertile plain in the southeast; mountain ranges in the east and south-east. ... The geography of the continent is extremely diverse, ranging from the snow-capped mountains of the Australian Alps and Tasmania to large deserts, tropical and temperate forests.
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Answer:
Independent group contingency
Explanation:
Independent group contingency are reward systems in which members of a group (children) individually earn token reinforcers demonstrating ideal behavior.
They stabbed them at the back while the british were fighting total war against french empire.
Because Leif Ericsson is closer to North America