The mass extinction at the end of the Mesozoic Era was caused by . a. solar radiation c. an ice age b. a meteor or asteroid colliding with Earth d. volcanic activity Please select the best answer from the choices provided A B

When studying the calumet region of illinois and indiana alfred meyers noted four stages of development as new groups occupied this land in stage 2 farmers used the land primarily to grow food for their familes and their small communities

Which of the following statements about geographers' perceptions and perspectives is false? a. geographers avoid looking at the world with different perspectives. b. regions are a relative thing and a matter of perception. c. spatial distribution can be a matter of perception. d. mental maps are a way that people memorize and perceive the world around them. select the best answer from the choices provided. a b c d

On venus, which of the following drives geological change? a. hurricanes b. volcanoes c. tsunamis d. earthquakes