Throughout the Late Paleozoic, Gondwana was located ____
a. at the North Pole
b. in the Northern Hemisphere
c. at the equator
d. in the Southern Hemisphere
e. spans the Northern Hemisphere and equator at the South Pole
d
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The common sense thought of "better safe than sorry" when applied to preventing species extinction is called the____________________
Fill in the blanks with correct word
In raising a 5000-N piano with a pulley system, it is noted that for every 1 m of rope pulled down, the piano rises 0.1 m. Ideally, this means the force needed to lift it is about
A) 50 N. B) 500 N. C) 5000 N. D) not enough information given
Which of the following is NOT a way that magma can lose heat to begin solidifying ?
a. conduction to surrounding solid rocks b. loss of thermal energy c. water that is heated and circulated near the magma d. an increase in the rate of radioactive decay
As the temperature of a radiating surface is increased ________
A) the total amount of energy emitted increases B) a larger portion of the energy is radiated at longer wavelengths C) a larger portion of the energy is radiated at shorter wavelengths D) both A and B E) both A and C