Your indicates that the relative humidity is very low. rain probably occur.
a-psychrometer,
b-will psychrometer,
c-won't anemometer,
d-will anemometer, won't

Your psychrometer indicates that the relative humidity is very low. Rain probably won't occur.

A psychrometer consist of two thermometers - a dry bulb thermometer that is used to measure the temperature by being exposed to the air  and a wet bulb thermometer that measures the temperature by having the bulb dipped in a liquid. This instrument measures the relative humidity in the atmosphere through the use of these two thermometers.

answer; i believe the answer is hydraulic action;

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."