What is a rock? What will be an ideal response?
A rock is a naturally occurring aggregate of one or more minerals.
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Sketch and describe the three kinds of tectonic plate boundaries. What causes their differences?
What will be an ideal response?
Why is it difficult for tobacco farmers to convert to farming other crop types?
A) Tobacco is a labor intensive crop B) Tobacco farms are small C) Tobacco tends to make the soil unusable for other crops. D) Both A and B E) Both B and C
The atmosphere is mainly transparent to this form of ultraviolet radiation?
A. The atmosphere is equally transparent to UV-a, UV-b, and UV-c radiation. B. A - UV-a C. C - UV-c D. B - UV-b
Which of the following organisms primarily regulates its internal body temperature by external means?
a. Whale b. Bear c. Mouse d. Butterfly