What is the big bang theory??

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

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

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