Which type of tool is used to apply an impact force directly on another tool or object?
a. lever
b. striking
c. impact
d. swinging
Answer: b. striking
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What explains the narrow coastal band of Cs (mediterranean) climates at about 35° North and South along the west coast?
The following questions are based on the diagram of the Köppen climate distribution on a hypothetical continent (Figure 23-2). It may also be helpful to compare the hypothetical continent with the map of actual climate distribution color Map T-29 in the back of the Lab Manual and Figure 23-3 showing the influence of the seasonal shifts of the ITCZ and subtropical highs along the west coasts of continents. In answering the questions, consider both the characteristics of a climate and the dominant controls producing that climate.
Greenstone belts are some of the youngest rocks on Earth. Indicate whether the statement is true or false
How have scientists used isotopic analysis to determine the rise of atmospheric CO2 is mostly from the burning of fossil fuels?
A) Since 14C is an unstable isotope, scientists have dated the atmospheric carbon to the period since the Industrial Revolution. B) Both coal and oil contain a high proportion of 14C. By analyzing, 14C/12C ratios, scientists have been able to determine the source based on this fact. C) The low proportions of 13C and 14C within atmospheric CO2 indicates the source is fossil carbon. D) 14C concentrations are much higher in urban areas than in rural areas, indicating fossil fuels must have a higher 14C/12C ratio than carbon from other sources.
The pattern of drainage channels on the basin floor in basin-and-range topography tend to be ________
Fill in the blank(s) with the appropriate word(s).