Where were marsupials most abundant during the Cenozoic Era? What has been their fate thus
far? What will be an ideal response?
Marsupials have always been the dominant mammalian fauna in Australia. They escaped
competition with placentals because Australia separated from Antarctica in the Late Cretaceous-
Paleogene, and has remained isolated ever since. They were also common and diverse in the
island continent of South America, until the Isthmus of Panama connected North and South
America about 5 million years ago—and then many of them became extinct.
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In the Norwegian cyclone model, dry ____________________ ____________________ air is initially separated from moist marine tropical air
Fill in the blank(s) with correct word
Which of the following geographic phenomena is most effectively understood through spatial analysis?
A) the distance people are willing to travel for groceries B) the strong feelings people have toward their ethnic home region C) regionalization and the classification of a continent into sub-regions D) place-making and the production of cultural landscapes E) natural processes creating unique landforms in humid environments
People around the world have become more dependent on global markets for their food. As a result, recent U.S. government policies encouraging ________ have had a major negative effect on food availability
A) organic farming B) permaculture techniques C) ethanol production D) integrated pest management E) increased herbicide use
The three components of the fire triangle are fuel, heat, and _______________
Fill in the blank with correct word.