Some rapidly growing crops such as corn and sugar cane can be used to generate biofuels, because biomass can be transformed into burnable liquid.
a. true
b. false
Ans: a. true
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How does road construction associated with timber harvesting contribute to landslide hazards?
A) The roads add weight to the hillslope. B) The roads loosen the soil, making shallow soil slips more likely. C) Road construction removes large numbers of trees. D) The roads alter the movement of surface water and groundwater.
The altitudinal difference between the highest and lowest points in an area is known as ________.
A) relief B) regolith C) the strata D) landscape E) topography
What is the value of the correlation coefficient?
A regression of the number of cases of a particular disease per 1000 people based on the number of people vaccinated against it as children (per 1000) is performed on data collected from 34 cities. The results are summarized below:
Intercept .914
Slope -.001
In order to demonstrate true skill, a forecast must do a better job than a climate-based prediction
Indicate whether the statement is true or false