The first scientific expedition to use an echo sounder was the ____
A) ?Challenger expedition
B) ?Meteor expedition
C) ?United States Exploring expedition
D) ?voyage of Trieste
B
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The width of growth rings in which of the following materials can provide a record of climate?
a. Trees b. Shells c. Corals d. All of the above e. Both and b
Which factor does not affect wave height?
A) local depth of the ocean B) velocity of wind C) duration of wind D) direction of wind
Herbicides would be most useful in combating ________
A) weeds that infest our agricultural fields B) bacteria, such as Salmonella, which sometimes contaminate meat C) mosquitoes that spread malaria in tropical rain forests D) fungi that attack plant roots
What law was passed to ensure safe land disposal of hazardous wastes? What are the main features of the legislation?
What will be an ideal response?