Which of these is an example of global warming?
A. a record-breaking high temperature in Iowa on a certain day in August
B. a higher average frequency of hurricanes over a period of 30 years
C. a year with more extreme weather incidents than average
D. a measurement of carbon dioxide that is higher than all previous measurements
Answer: B
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After tropical storm Jeanne, one immediate consequence of Haiti's forestry practices was to ________
A) increase volume and speed of rainfall runoff B) decrease important sediments brought to cropland C) increase the demand for wood products from forests D) pollute tropical oceans decreasing tourism E) reduce NPP values that affected food growing potential
In the late spring and summer of 1993, the Upper Mississippi River Basin experienced record high floods. However, the floodwater mass did not significantly affect the Lower Mississippi River Basin because ________.
A. there was a drought in Louisiana B. the input from the Ohio River flow was low C. the Southern levees were built higher during the summer before the water got there D. All of these choices are correct. E. None of these choices are correct.
The minerals gold, silver and mercury are often found in ________
A) hydrothermal veins B) the lower parts of an intrusion C) alteration of limestone D) disseminated deposits
Many species exhibit both exponential (________) and logistic (________) population growth characteristics.
A. K selected; r selected B. r selected; K selected