71. As the air temperature increases, with no addition of water vapor to the air, the dew point will:
72. As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:
73. Green House effect is caused by
74. If the air temperature remains constant, evaporating water into the air will ____ the dew point and ____ the relative humidity.
75. If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would ____, and the wavelength of peak emission would shift toward ____ wavelengths.
76. The presence of high coliform counts in water indicates
77. As it travels along the food chain, the concentration of DDT
78. Industrial melanism is an example of
79. Coal is a __________ resource.
80. Extensive planting of trees to increase forest cover is called
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