The primary cause of Earth's seasons is:

Changes in atmospheric thickness

Varying orbital speed

Inclination of Earth's rotational axis

Varying distance from the Sun

In Mediterranean agriculture, when did the addition of the olive and the vine to wheat crops occur? A. At the end of the monolithic period. B. During the Cro magnum era C. At the end of the Neolithic period D. Before the Paleolithic age.

An example of an indicator species is the sea otter. Without sea otters, sea urchins would overgraze on kelp beds, dramatically changing the marine community. True or False.

A word that supports and extends an idea is called a (n)

How is the worlds human settlement affected by the uneven distribution of resources

Crust is neither destroyed nor formed along which of the following boundaries

Which of the following terms describes a family structure headed by a woman?

Which of these is a renewable resource? a. coal b. cotton c. copper d. petroleum

What are the classifications for the six major land areas on earth?

Which of the following European countries is one of the top three leading exporters in the world? A) United Kingdom B) Germany C) Spain D) France

Fault lines are: the crust of the lithosphere that has fractured along plate boundaries and ridges the crust of the athenosphere that has fractured along plate boundaries and ridges the crust of the biosphere that has fractured along plate