Alcohol and pickling solutions were probably widely developed because they
A. Have more interesting flavors than other solutions for seasoning
B. Are effective insecticides in the home
C. Preserve food due to their pesticidal properties
D. Neutralize toxins in foods
E. All of these are good reasons why alcohol and pickling solutions were used
Answer: C
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Which of the following terms refers to the density of water vapour in a given parcel of air?
A. mixing ratio B. specific humidity C. absolute humidity D. relative humidity
Many polluted ecosystems, such as those suffering from eutrophication, will recover if humans stop polluting them. This illustrates
A) loss of ecosystem capital. B) the essential role of keystone species in ecosystems. C) secondary succession. D) the natural resilience of ecosystems.
Seawalls act to stop erosion in one location at the expense of another location.
Answer the following statement true (T) or false (F)
What is NOT true about the Hadley cell circulation pattern?
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