How do polar bears stay warm?
a) they hibernate in the winter.
b) their black skin absorbs sunlight or radiant energy.
c) their white fur absorbs sunlight and converts it to heat.
d) they reduce their metabolic rate when food is hard to find.

The practice of selective incorporation means that the bill of rights will

Why hadn’t europeans used maritime routes before the age of exploration?

President clinton, on the fortieth anniversary of the events in arkansas surrounding the "little rock nine," stated that "when the constitutional rights of our citizens are threatened, the national government must guarantee them." this principle was the basis for using federal authority in: the expansion of voting rights to women. the passage of the civil rights act of 1964. the passage of the americans with disabilities act. all of the choices.