The average density of the Earth is 2.7 gm/cm3.
Answer the following statement true (T) or false (F)
False
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In rich countries, such as the United States, higher percentages of national budgets are spent on senior citizen centers than on
A) elementary schools. B) health care. C) military. D) social security.
Identify anthropogenic inputs that could increase the acidity of the ocean. What will be an ideal response?
Which of the following is data rather than an interpretation?
A. Rising and sinking of the land around Yellowstone is related to underlying magma. B. The ages of volcanic centers near Yellowstone indicate that North America is moving southwest over the mantle. C. Some trees along Yellowstone Lake were flooded when the land north of the lake rose because of magma at depth. D. All of these are data rather than interpretations. E. All of these are interpretations rather than data.
Which of the following is NOT an example of non-petroleum chemical pollution?
a) caffeine b) pesticides c) oil d) human waste e) mercury