Which of the following is true of Earth's orbit about the Sun?
A) It is perfectly circular.
B) It is elliptical.
C) It takes approximately the same time for Earth to orbit the Sun as it does for the rest of the planets in the solar system to orbit the Sun.
D) The orbit does not vary over millions of years.
B
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What accounts for the largest share of solid waste in the United States?
A) tin cans B) frozen food trays C) paper products D) beer bottles E) electronics
The short residence time of water in the atmosphere allows a water molecule to have a stronger ability to do which of the following, compared to a situation if the residence time in the atmosphere were larger?
A. acquire potential energy and convert it to kinetic energy B. store and release latent heat C. participate in the hydrologic cycle D. erode the surface E. All of these.
In Icelandic-type eruptions, low-viscosity, low-volatile content lava erupts peacefully.
Answer the following statement true (T) or false (F)
A shortest-path analysis can include intermediate stops between the origin and destination.
Answer the following statement true (T) or false (F)