The field of ____ uses science and engineering to manipulate and create materials out of atoms and molecules at the ultra-small scale of less than 100 nanometers.
A. seismology
B. nanotechnology
C. ecology
D. mineralogy
E. hydrology
Answer: B
Environmental & Atmospheric Sciences
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Which of the following is an example of a primary producer?
A) phytoplankton B) crabs C) fish D) seals
Environmental & Atmospheric Sciences
In the 1970s, sources of CFC pollution in the U.S. included all of the following EXCEPT ________
A) air conditioners B) refrigerators C) polystyrene manufacturing plants D) coal-burning power plants E) aerosol spray cans
Environmental & Atmospheric Sciences
The giant brown bladder kelp the fastest-growing ________ in the world
A) algae B) annelid C) mammal D) meiofauna E) plant
Environmental & Atmospheric Sciences
Before time zones were created in the 1880s, one could encounter ________ local times during a rail trip across the United States
A) no B) 1 C) 2 D) 3 E) many
Environmental & Atmospheric Sciences