True or False: Determination of the origin of continental crust is more complicated than determining the origin of oceanic crust
Indicate whether this statement is true or false.
Answer: TRUE
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This image would be best used in what situation?
A. The average gradient for a particular area needs to be known to study surface runoff. B. A petroleum company wants to know if any geologic structures in the area could contain oil pools. C. The thickness of the surface layer of rock needs to be determined for a construction site.
Biologists advising park rangers wondered how best to dispose of human wastes in order to avoid harmful transmission of disease at remote camping sites along a turbulent river
Every year thousands of people canoe down the river and are required to stay at predetermined campsites. These remote locations are not accessible by road or any large boat. Which of the following strategies of managing human waste would have the least impact on the environment? A) Encourage people to urinate in the river and carry out solid human waste in special biodegradable bags to later be disposed of as hazardous waste. B) Require everyone to dig their own latrine and bury their own waste when they are done. C) Accumulate all human wastes in large tanks, seal them permanently, and bury them when they are full. D) Allow people to leave all human wastes on the ground as long as they are out of sight.
Which of the following is the biggest megacity in the World?
A) Seoul B) New York C) Delhi D) Sao Paolo E) Tokyo
Which portion of the lightning process is the most visible?
A) charge separation B) stepped leader C) return stroke D) dart leader