The arid regions of the world rely heavily on irrigation in order to grow crops. which of these is the biggest consequence that occurs with excessive irrigation?

How can studying economics us make better choices about how to use scare resources

What factors of japan’s geography make it necessary for it to import so many goods?

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.