The comparative form of adjectives compares. a, the past to the present. b, at least a dozen different times. c, two things are people. d, more than two things or people.
Which of the following continents was not covered by ice during the Pleistocene ice age? a. Europe b. Asia c. Australia d. North America
Which of the following is not an agricultural technique? a. irrigation b. selective breeding c. livestock herding d. none of the above