Coastal california is famous for fog and smog (fog mixed with smoke). why is the california coast foggy/smoggy, whereas houston, texas, which is at similar latitude, might get occasional smog from too many cars, but fog is relatively rare?

To be or not to be that is da question

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent