A star's ________ can be determined from its color.
A) age
B) surface temperature
C) density
D) composition
Answer: B) surface temperature
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All of the following affect the global rise in food prices, except
A) the global price of oil. B) bad weather, especially drought. C) a marked decline in demand for meat and animal products, especially in China and the United States. D) an increase in biofuel production, especially in the United States.
The examination of the relationships between organisms and their environment is the science known as:
a. ecology. b. environmental protection. c. ecosystemics. d. oncology.
The micas, biotite and muscovite, both exhibit one direction of cleavage
Indicate whether the statement is true or false
Increased human populations near coral reefs increases the nutrient levels of the reef waters from ________ and farm fertilizers
A) bioerosion B) fishing C) mining D) sediment E) sewage