Which of the following are causes of indoor air pollution? select all that are true.
a. respiratory disease conversion to more efficient,
b. clean-burning cook stoves purchase of low- or no-voc paints,
c. carpeting, and furniture increased ventilation inefficient indoor cookstoves vocs from paints,
d. carpeting, and furniture people ill from sick-building syndrome
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Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley
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Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.
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What are the characteristics of carbon bonds? check all that apply.
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Which of the following are causes of indoor air pollution? select all that are true.
a. resp...
a. resp...
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