Which of the following is an example of artificial selection?

A sedimentary rock is metamorphosed into three rock types: (1) a banded gneissic rock; (2) a rock with small mica crystals with a shiny aspect; (3) a very shiny rock with large mica crystals; and (4) a dull slate with cleavage.

Where does seafloor spreading occur? A. Seamounts B. Guyots C. Rift zones D. Abyssal plains

Water scarcity is increased for all of the following reasons except A. Demand is increasing B. The population of the globe is increasing C. The amount of freshwater on earth is decreasing D. More land is being farmed

List and describe three factors that may lead to speciation

1. What two Japanese cities were Little Boy and Fatman dropped on? 2. Who is the only country to use Nuclear bombs on another country? 10

1. Why is the "greenhouse effect" important for life on the earth? A It keeps the sun's heat and light equal. B It keeps the earth's air and water warm. OC It protects the earth from solar radiation. D It determines the position of the earth. nd Use

Which of these is caused by a chemical change? A) The honey in a jar crystallizes and will no longer pour. B) The skin of a banana turns from green to yellow as it ripens. C) A box of powdered brown sugar turns into a solid brick over time.

What geographic and weather features affect plant and animal life

Which realm contains the world's largest population?

Describe why a "permanent underclass" has developed in many cities, and the problems that result.