Which of the following molecules can have only London dispersion forces?
A) CH4
B) CO2
C) both a and b
D) neither a nor b
C
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Jerusalem is especially holy to Jews as the location of the Temple, their center of worship in ancient times
Indicate whether the statement is true or false.
The atmospheric brown cloud over much of China may be reduced by
A) switching from biomass to coal as sources of energy. B) switching from natural gas to the use of biomass fuels. C) climate change that promotes temperature inversions. D) reducing the reliance on biomass and fossil fuels for energy.
Small subsistence farms in developing nations
A) had a sustainable use of the environment when populations were smaller than now. B) have mostly depleted the natural environment, making farming no longer possible. C) can support the developing populations at up to 10 times their current population size. D) have polluted rivers and streams and destroyed surrounding forests.
What do these teardrop-shaped hills (drumlins) record?
A) Ancient lake levels
B) Piles of sediment recording past positions of the end of the glacier
C) Erosion and sculpting of soft materials by a moving glacier
D) Melting of large blocks of rock in the ice