The atomic number of an element equals the number of ________ in each atom.
A. electrons
B. protons
C. neutrons
D. Answers neutrons and protons are both correct; answer electrons is not correct.
E. Answers electrons, neutrons and protons are all correct.
Answer: B
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What type of ocean wave has a disturbing force of sudden changes in atmospheric pressure?
A) Seiche waves B) Capillary waves C) Wind waves D) Tidal waves
Photovoltaic cells are a component part of
A) nuclear power plants. B) geothermal energy generation. C) active solar energy systems. D) wind turbines. E) biomass collection.
The ________ period was the "golden age of trilobites."
Fill in the blank(s) with correct word
Examples of ways that pesticide use can be reduced include
A. crop rotation. B. monoculture. C. crop rotation and biological control. D. monoculture, crop rotation, and biological control. E. biological control.