Which of the following examples best represents a geographic study on a large scale?
a. the effects of global warming on the frequency of brush fires in australia.
b. the effects of rising ocean levels on marine ecosystems.
c. the impact of introduced species on the native species of australia.
d. the erosion of the north carolina coastline.

In a economy individuals answer the three basic and the central authority or leaders have little say in the economy.

Click the item in the left column. use the plus sign to move it up or the minus sign to move it down until it matches the correct entry in the right column. lock your answer in place by clicking the square beside the item. (a checkmark means it is locked.) amazon basin a atacama desert b andes mountains c lake titicaca d peru e patagonia f brazil g chile h suriname

Air masses are characterized by various properties including temperature humidity air pressure and wind speed. which of the following air masses is associated with low relative humidity and high air temperature ?