Describe and discuss the difference between a craton and a shield? What will be an ideal response?
A shield is the Precambrian rocks that are exposed at Earth’s surface. The craton, or continent’s
ancient nucleus, is made of the shield as well as its platform, which consists of buried
Precambrian rocks.
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The image below shows a beam of radiation passing between two electrically charged plates. 
Which of the beams is due to a high energy electron?
A. a B. b C. c D. all of the above E. none of the above
Which is affected more strongly by a rising sea level, population or land
area? What does this tell you about where people tend to live — near coastlines or in the interiors of continents? Explain What will be an ideal response?
What type of feature is represented by the boundary between geologic units 2 and 3?
A. unconformity B. anticline C. joint D. cleavage
A well in which water naturally rises to the surface because of pressure on the underground layers of rock is called _____________________.
Fill in the blank(s) with the appropriate word(s).