Which of the following is an example of bycatching?
A) Fishing fleets surround a marine reserve and try to capture any fish entering and leaving the reserve.
B) A shark is captured and killed because it keeps swimming by a crowded public beach.
C) Canadian fishermen switch to catching capelin because of the moratorium on cod fishing.
D) A fishing fleet destroys a coral reef while they bottomtrawl for shellfish.
E) Fishermen accidentally catch sea turtles while drift netting for pelagic fish.
Answer: E
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Integrated pest management ____ than pesticides
a. requires more expert knowledge about individual pest-crop situations b. is faster acting c. requires more fertilizer and irrigation d. is more expensive e. requires more labor
Which set of moraines formed first: the Bloody Canyon moraines or the Sawmill Canyon moraines? How do you know?
Large lateral moraines can be see at the mouth of Bloody Canyon (Walker Lake and Walker Creek are between these moraines; 37°52'28"N, 119°09'53"W). The glacier that left these moraines flowed down Bloody Canyon from near Mono Pass. Sawmill Canyon (just south of Bloody Canyon) consists of two large lateral moraines—these moraines were left by a glacier that at one time also flowed down Bloody Canyon. What will be an ideal response?
What type of plate boundary is the San Andreas Fault?
a. convergent b. divergent c. transform d. passive e. none of the choices
Which of the following BEST embodies the qualities of a scientific theory?
A) Dangerous wildfires in California could be avoided by better fire prevention strategies. B) Squirrels in central Illinois prefer to build their nests in oak trees instead of hickory trees. C) All gases, liquids, and solids consist of atoms. D) Students who study for their environmental science exams will perform better on those exams than those who do not. E) Prairies that have larges herds of bison show greater plant diversity than prairies without bison.