Which of the following methods are used to measure ocean surface currents indirectly?
A) Accidental spills from container ships
B) Doppler flow meters
C) Free-drifting Argo floats
D) Propeller flow meters
E) Radio-transmitting float bottles
B
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What are some of the visible evidences of the widespread use of the township and range land survey system all across the midwestern United States?
What will be an ideal response?
Which of the following determines blood type A in the ABO blood typing system?
A) the presence of only N-acetyl-D-galactosamine antigen B) the presence of only D-galactose antigen C) the presence of both N-acetyl-D-galactosamine and D-galactose antigens D) the absence of both N-acetyl-D-galactosamine and D-galactose antigens
In Central and South America, people are more likely to protect the natural environment because they are learning that __________.
A. they will pay high fines or be sent to prison if they travel into these regions B. the natural environment provides most of their basic needs C. natural environments prevent the formation of damaging weather systems such as hurricanes D. most of these systems are a major source of carbon dioxide
Immigrants to the United States under the age of 15
A) are less common than the proportion of children already in the U.S. population. B) are more common than the proportion of children already in the U.S. population. C) are equally common than the proportion of children already in the U.S. population. D) cannot legally immigrate. E) may only arrive with their mothers and proper immigration documents.