How is cold front formation different from stationary front formation? a - Stationary fronts form between warm and cold air masses, while cold fronts form when a cold air mass advances against a warm air mass.
b - Cold fronts form between two air masses that barely move, while stationary fronts form when a warm air mass is trapped between two cold air masses.
c - Cold fronts form when a warm air mass moves over a cold air mass, while stationary air fronts form when a cold air mass moves over a warm air mass.
d - Stationary fronts form when a warm air mass is trapped between two cold air masses, while cold fronts form when a warm air mass moves over a cold air mass.

Stationary fronts form between warm and cold air masses, while cold

fronts form when a cold air mass advances against a warm air mass.

These are the fronts which are formed when a cold front or warm front

stops moving. The formation is usually between the warm and cold

masses.

Cold front on the other hand are formed when cold air is more advanced

against the warm air mass.

Read more about Stationary mass here link

blah

explanation: bc blah

"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."