The measure of an element's ability to attract electrons is its
A. atomic mass.
B. electromagnetic energy.
C. electronegativity.
D. atomic number.
Answer: C
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Biologists think there are four major reasons why we should work to prevent human activities from causing the extinction of other species. Which of the following is the exception?
A. Species are part of the earth's life support system. B. Most species contribute to services that support our economies. C. It will take 5-10 million years to rebuild the biodiversity. D. We need animals, especially rare animals, for zoos. E. Each species has a right to exist even if it isn't useful to us.
After the dismantling of the Soviet Union, Russia maintains naval bases in
A) Armenia. B) Ukraine. C) Kazakhstan. D) Belarus. E) Tajikistan.
The type of stress that causes most folding is
A) tension. B) compression. C) confining pressure. D) fluid pressure.
Discuss the stratigraphy of the Grand Canyon. What does this stratigraphy imply about sea
level? What are the formation names of the Grand Canyon rocks? What will be an ideal response?