Fresh water has its maximum density at ________.
A. 100°C
B. 0°C
C. 32°C
D. below freezing
E. 4°C
Answer: E
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There was a mass extinction at the end of the Jurassic Period. Indicate whether the statement is true or false
The causes of mortality differ greatly between developing and developed countries. In developing countries, a high proportion of mortality is caused by
A) infectious disease; while in the developed world, most deaths are related to crime. B) poor nutrition; while in the developed world, infectious disease causes most deaths. C) wars and accidents; while in the developed world, most deaths are related to infectious disease. D) infectious disease; while in the developed world, most deaths are related to aging and diseases connected to voluntary behaviors such as smoking and diet.
Isolated knobs of resistant bedrock that rise up from desert pediment surfaces are:
a. bolsons. b. badlands. c. bajadas. d. inselbergs. e. regional base levels.
If something cannot be directly experimented upon, it is not considered to be a part of science.
Answer the following statement true (T) or false (F)