Environmental Science
Lead poisoning

reduces O2 carrying capacity of hemoglobin in blood
increases O2 carrying capacity of myoglobin in muscles
reduces O2 carrying capacity of myoglobin in muscles
increases O2 carrying capacity of hemoglobin in blood

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Environmental Science
Which one is true?

symbiosis when neither population affects each other
symbiosis when the interaction is useful to both the populations
commensalism when none of the interacting populations affect each other
commensalism when the interaction is useful to both the populations

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Environmental Science
The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

High albedo of clouds, high albedo of water
Low albedo of clouds, high albedo of water
High albedo of clouds, low albedo of water
Low albedo of clouds, low albedo of water

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