Which of the following creates a major problem for scientists studying a particular cycle of glaciation?
a. subsequent glaciation
b. changes in sea level
c. human activity
d. changes in wind direction
A
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Suppose the engine of a miracle car has a 100% efficient engine. It burns fuel with an energy content of 40 MJ/L. The average retarding force along a road is 1000 N. What distance can the car cover for one liter of fuel burned?
A. more than 50 km. B. 30 km. C. 50 km. D. 40 km. E. not enough information
A forecaster will use a prognostic chart for guidance in preparing a forecast, but will also rely on personal experience and a knowledge of local features that can affect the weather
Indicate whether the statement is true or false
Which is likely to flow farther down to the flatter, wider part of a valley: a debris flow or a mudflow? Why?
What will be an ideal response?
Which scenario predicts the lowest level of warming during the 21st century?
A) RCP4.5 B) RCP2.6 C) RCP8.5 D) RCP6.0