Which of the following regions has the lowest annual frequency of tornadoes?
A) Florida
B) North Texas to the Dakotas
C) Gulf Coast
D) Northeast coast
D) Northeast coast
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Gravitational attraction of Earth on a skydiver pulls the diver downward. The reaction to this force is
A. air resistance the skydiver encounters while falling. B. Earth pulling upward on the skydiver. C. all of the above D. none of the above
ECOWAS stands for Environmental Concerns of West African States
Indicate whether the statement is true or false
Nuclear energy in power plants is created via ________
A) ionic transformation of atoms B) bombarding radioactive elements with electrons C) extraction of energy from the nucleus of cells D) fissioning uranium atoms by bombarding them with neutrons E) fusion of electrons
Four of the following are characteristics that make some species especially vulnerable to ecological and biological extinction. Select the exception.
A. low reproductive rates B. small territories C. feeds at high trophic level D. narrow distribution E. rare