Which of the following have NOT been discovered on Mars?
A. channels cut by running water
B. examples of slope failure
C. a huge canyon system that began as a large rift
D. the largest volcano in the solar system
E. Mars contains all of these features
Answer: E
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The fact that a declining birth rate can still lead to population growth ________.
A. is due to a lowering of the infant mortality rate B. is referred to as population momentum C. can only happen if the life expectancy of the older population increases D. is incorrect since if the birth rate declines, so too does the population
Approximately 125,000 years ago, temperatures were warmer than current temperatures, yet atmospheric CO2 were lower than present. How do scientists account for this lower-than-expected atmospheric CO2 concentrations?
A) Much higher photosynthetic activity due to differences in plant life. B) Dilution of atmospheric CO2 by large inputs of water vapor from increased evapotranspiration. C) Absorption of excessive CO2 by oceans. D) Linking the higher temperatures to causative factors other than CO2 concentrations. E) Scientists do not account for the difference, indicating that anthropogenic climate change is a hoax.
Detecting the nature of an object and the content of an area from a distance is ________.
A. remote sensing B. mental mapping C. GIS D. vector approach
Warning signs of hyperthermia include high body temperature, mental confusion, fainting, and dry skin with a rapid or slow pulse.
Answer the following statement true (T) or false (F)