How has farming had an impact on the environment.​

How do you date a sample of rock that you suspect as being one of the earliest on earth

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f