During what time period did large mammals roam the continent?
A) Mesozoic
B) Cenozoic
C) Precambrian
D) Paleozoic
Ans: B) Cenozoic
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The three basic divisions of an ophiolite sequence are ____
a. upper mantle, lower continental crust, and sedimentary rocks b. oceanic crust, continental crust, and lower mantle c. upper mantle, upper continental crust, and sedimentary rock d. upper mantle, oceanic crust, and sedimentary rocks e. sedimentary rocks, oceanic crust, and continental crust
Pesticides, primarily herbicides and insecticides, are widely used in agriculture because
A. they allow farmers to spend less on less time and money to till the soil. B. they increase the amount of food produced. C. they reduce crop loss to weeds and insects. D. All of the statements are correct. E. None of the statements is correct.
The U.S. is the fastest growing market for computer software
Indicate whether the statement is true or false
Which of the following are characteristics typical of volcanic domes?
A. often occur in clusters B. rubble-covered surface C. steep-sided D. All of these choices are correct.