The average speed of a ball rolling along a horizontal track will be increased if the track
A. has a dip along it.
B. has a hump along it.
C. both of these
D. not enough information
Answer: A
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This volcano is broad and low, and is composed of basaltic lava flows. What kind of volcano is it?
A) Cinder cone
B) Shield volcano
C) Composite volcano
D) Volcanic dome
E) Caldera
Which of the following best matches the description?Kind of chemical that kills many different types of living things.
A. micronutrients B. fungicide C. herbicide D. macronutrients E. soft pesticide F. weed G. macronutrient H. auxin I. hard pesticide J. persistent pesticide K. rodenticide L. biomagnification M. chlorinated hydrocarbon N. biocide O. micronutrient P. pheromone Q. organophosphate
The average American generates about ________ of municipal solid waste each year. (1 kg = 2.2 lbs.)
A) 625 kg B) 550 kg C) 350 kg D) 725 kg E) 400 kg
The number of incoming objects is related to their size; the ________.
A. number is the same for each size range B. larger the meteoroids, the greater their abundance C. smaller the meteoroids, the greater their abundance D. size is inversely proportional to the number