A large person and a small person wish to parachute at equal terminal velocities. The larger person will have to
A) get a larger parachute.
B) jump lightly.
C) pull upward on the supporting strands to decrease the downward net force.
D) jump first from the plane.
E) none of the above
A
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What did Harry Hess and Robert Dietz suggest the cause of the continents moving was?
A) Convection currents B) Radioactive decay C) Conduction D) None of these choices
A lake with a large supply of nutrients is called a[No] ____________________ lake.
Fill in the blank(s) with the appropriate word(s).
A surge in birth rates after World War II that lasted for approximately twenty years was called the __________ __________
Fill in the blank(s) with correct word
The stratospheric ozone layer is important to ecosystems because it ________
A) ensures lakes and oceans do not lose water B) provides the air we breathe C) keeps atmospheric gases balanced D) absorbs and scatters UV light E) keeps the temperature of Earth stable