What is an urban area? A. Cities and towns
B. Farms and crops
C. Countryside
D. Mountain peaks

Which of the following is a disadvantage of using solar energy? a. it requires good sun exposure. b. it is abundantly available. c. it is a renewable resource. d. it reduces greenhouse gas emissions.

If the limit, as x approaches infinity (or negative infinity) of a function is equal to a, we say that the line y = a is a of the function f.

The biome pictured above is found in areas such as kenya and south africa. the land is grass-covered with very few trees and gazelles and other grazers are common here. why does this biome have a low population of trees? a) large grazing animals destroy the trees. b) it is a deforested rainforest with poor soil. c) it has high temperatures and low precipitation. d) it has a long rainy season followed by flooding.