The risk of death from an environmental hazard is calculated as the number of people who might die compared to the number exposed to the hazard. Which probability factor does the EPA to determine if the risk is acceptable?
A. 1 in a 1,000,000
B. 1 in 10,000
C. 1 in a 100
D. 1 in a 10,000,000
Answer: A
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Primary productivity is measured in terms of gC/m2/day.
Answer the following statement true (T) or false (F)
The term half life represents the time it takes
A. to dissolve half of the atoms in the lattice. B. for half of the parent atoms to decay into daughter atoms. C. for the Sun to decrease its size by 50 percent. D. for the parent atoms to decay into atoms half their original size.
Discuss why marine phytoplankton are generally smaller and more ornate than their freshwater counterparts
What will be an ideal response?
Why might a high-formula-mass alcohol be insoluble in water?
A) A high formula mass alcohol would be too attracted to itself to be soluble in water. B) The bulk of a high formula mass alcohol likely consists of nonpolar hydrocarbons. C) Such an alcohol would likely be in a solid phase. D) In order for two substance to be soluble in each other their molecules need to be of comparable mass.