For what fraction or percent of geologic time have land plants been present on earth

What are some possible consequences of preventing prescribed burns and natural wildfires

Which area is most likely to be the safest during a major earthquake?

Global winds are found in each convection region. because convection cells are in a set place in the atmosphere and the earth is spinning on its axis, the winds appear to curve. the apparent curving of the winds is called a. the coriolis effect b. atmospheric curving c. the curvature effect d. the global wind effect