Environmental Science
Suppose saturated polar air has an air temperature and dew point of -10o C, and unsaturated desert air has an air temperature of 35o C and a dew point of 10o C. The desert air contains ______ water vapour and has a ________ relative humidity than the polar air.

More, lower
Less, higher
Less, lower
More, higher

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Environmental Science
Which one is true?

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

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