Why is it difficult to predict the weather of a place while it is easy to predict its
climate?

The reason is that the climate of a place is a long-term change and doesnt change that frequent that you should believe that a climate is a stable thing

while weather is a short-term change seasons like summer, spring, winter, and fall can change from place to place varying on the amount of rainfall and amount of sunlight a place recieves.

Hope this helps!

becz the wheather is a changing temperature of wheather which does not stay the same for long

Although on the other hand, the climate is a temperature for a long period of time.

"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."

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;