What process is necessary for many markne organisms to have access to nutrients they depend on for continuing of life?
a. evaporation
b. up welling
c. desalination
d. condensation

Tuberculosis is a disease caused by a bacterium and can often be fatal. for several decade , antibioticre very succesful in killing tuberculosis bacteria but now strains of the bacteria have developed that can only killed by when treated for long period of time with multiple types of antibiotics. why have the antibiotics become less effective aagainst tuberculosis