Breaks in the geologic record that result from
locally unrecorded intervals of depositing in
sedimentary layers are called
a)anticlines.
b)intrusive sills.
c)unconformities.
d)warped or folded time.
c
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Is the mass of iron greater than, less than, or equal to the mass of aluminum?
A) The mass of iron is equal to the mass of aluminum. B) The mass of iron is greater than the mass of aluminum. C) The answer depends on temperature. D) This is an incorrectly stated question. Iron and aluminum are types of material, mass is the property of an object. E) The mass of iron is less than the mass of aluminum.
Two lightbulbs both operate on 120 V. One has a power of 25 W and the other 100 W. Which lightbulb carries more current?
1.The dim 25-W lightbulb does. 2.The bright 100-W lightbulb does. 3.Both are the same.
If an astronaut in full gear has a weight of 1200 N on Earth, how much will the astronaut weigh on the Moon?
A. 20 N B. 120 N C. 200 N D. 720 N
Which one of the following statements is true?
A) Desert landscapes are monotonous, relatively flat areas covered to various depths with sand B) Deserts and dry lands are concentrated in areas of ascending air masses and relatively low atmospheric pressures C) Despite infrequent rainfalls, erosional and depositional features of running water are important in desert landscapes D) Wind is the major cause of erosion in deserts because there is little water but a lot of wind available