Composting is a waste disposal method that
A. Is more environmentally costly than landfilling
B. Vastly reduces total waste volumes
C. Is technologically complex
D. Is useful only for single households
E. Is not realistic for college students
Answer: B
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Seismic waves are like
A. ocean waves, because they are transverse. B. X-rays, because they let us see into Earth. C. sound waves, because they are longitudinal. D. radio waves, because they are of similar length.
Earth's rocks, soils, and surface landforms together comprise the
A) lithosphere. B) biosphere. C) troposphere. D) hydrosphere.
The objectives of China's Three Gorges Dam are to control river flooding and to create a resort
Indicate whether the statement is true or false
If a molecule of human DNA were fully stretched out approximately how long would it be?
A) 1 mm B) 1 cm C) 1 m D) 5 m