Birds are ____________; they generate and regulate metabolic heat to maintain a constant internal temperature. Fill in the blank(s) with the appropriate word(s)

Two charged particles 1 m apart exert a 2-N force on each other. If the magnitude of each charge is doubled, the force on each particle will be

A. 1 N. B. 8 N. C. 2 N. D. 4 N.

The humanistic approach in geography emphasizes ________ values, meanings, intentions and behaviors

A) an individual's B) humankind's C) a specific culture's D) cultural E) social

Many of the volcanoes in mainland Alaska and the Aleutian Islands ____

A)are in the Cascade Range B)were formed over hot spots C)were formed over divergent plate boundaries D)have formed within the last 1000 years E)are composite volcanoes

Judge the following sentence according to the criteria given below: Coral are usually found close to areas where major rivers drain into the sea BECAUSE they require high turbidity and fresh water

A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.