Consider the characteristics of two parcels of air starting at T0. Which of the following statements is true regarding parcel of air 1 and parcel of air 2?
A) Parcels 2 and 1 have the same amount of water vapor in order to reach saturation.
B) Parcel 2 has less water vapor than 1 and will need to cool more than 1 to reach saturation.
C) Parcel 2 has more water vapor than 1 and will need to cool more than 1 to reach saturation.
D) Parcel 2 is warmer than 1 and will need to cool more than 1 to reach saturation.
B) Parcel 2 has less water vapor than 1 and will need to cool more than 1 to reach saturation.
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What will be an ideal response?
Chesapeake Bay and Delaware Bay are ________
A) excellent examples of large estuaries B) former river valleys that were flooded by a rise in sea level C) associated with a submergent coast D) all of the above
Where was North America 150 million years ago?
A. over the south pole B. next to Antarctica C. next to Australia D. closer to Africa and South America E. None of these choices are correct.
Biosolids, a byproduct of sewage sludge, are nutrient-rich materials used to fertilize crops. Despite boosting yields, the often pungent-smelling sludge may contain toxic metals and pathogens. Should it still be used?
a. Yes; this practice conserves landfill space and is an efficient use of resources. b. Yes, but only if the biosolids are tested prior to application. c. No; biosolids create an unnecessary risk when synthetic fertilizers that are safe can be used instead. d. I’m not sure. I would need more information before making a decision.