Which human activities cause sudden changes to earth’s surface? choose all answers that are correct: a: planting crops on hillsides. b: erecting wind turbines c: cutting vast areas of forest. d: building tunnels through mountains.

Which of the following expressions is equivalent to -1/4y - 2 1/4 + 1/2 (4-2y)? a. -3y + 2b. -3 1/2+4c. -4 1/2y+2d. -4 1/2y+2show ur work

The model of human settlement suggests that uthe model of human settlement suggests that urban growth is patterned around transportation networks such as railroads and highways. a. burgess b. hoyt c. sauer d. von thunenrban growth is patterned around transportation networks

Which of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?