Which of the following best describes the source of Earth's internal heat?
A. Internal friction & and heat generated by tidal forces.
B. The sun and radioactive decay in Earth's interior.
C. Internal friction and the sun.
D. Internal friction and radioactive decay in Earth's interior.
E. The sun and residual heat from the planet's formation.
Answer: D
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Which of the following instruments would you use for a rawinsonde observation?
A. aerovane B. radiosonde C. cup anemometer D. wind profiler
In photosynthesis, carbon dioxide and water in the presence of sunlight yields
1.proteins and oxygen.
2.chlorophyll and oxygen.
3.carbon and oxygen.
4.glucose and oxygen.
Which hazard is considered a natural hazard?
A. driving B. earthquakes C. poverty D. poor nutrition E. infectious diseases
Which term refers to an average ecological footprint of an individual in a given country or area?
A. per capita gross GNP B. ecological footprint C. per capita GDP D. sustainable yield E. per capita ecological footprint