The length of time preserved in Grand Canyon rocks is about:a
10,000 years.
b. 100,000 years.
c. 1 million years.
d. 1 billion years.
e. 10 billion years
D
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A battery in a circuit causes a lightbulb to glow by providing energy to which of the following in the wires of the circuit?
a. Electrons b. Protons c. Heat d. Light
What is the difference between the saturated zone and the unsaturated zone? What is the name of the undulating surface that forms the top of the saturated zone?
What will be an ideal response?
The main reason for the slowing of continental expansion in Europe in the 1300s was
A) prolonged and bloody warfare. B) the bubonic plague. C) the unwillingness to use paper money as a form of currency. D) the opposition of the Church. E) memories of bad experiences during the Crusades.
Which of these elements of folk culture has the most long-lasting impact as a mark of the origins and diffusions of folk culture?
A. transportation vehicles B. vernacular housing C. foods and music D. tools