Question 1 multiple choice worth 2 points)
(02.01 lc)wegener attempted to explain the movement of continents but could not identify a source of force strong enough what did scientists eventually identify
as the primary energy source that drives the movement of earth's plates?
convection
friction
gravity
volcanoes

ability to bond woth oxygen

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.