Which is an example of biotechnology? a. injecting vaccine into the body to vaccinate against a communicable disease b. using a robotic arm by means of an electrode implanted in the brain c. manufacturing cycling helmets that are durable and ultra light d. building aquatic farms tended by robots on the surface of mars

Why was it decided in potsdam that certain industries in germany would be disabled? a. to deplete resources that might prevent germany from coming to power again b. so that a portion of the eastern region of poland would be fused together with the soviet union c. to allow the allies to focus their war efforts in fighting the last part of the war against japan d. to provide economic aid for iran's government since large war demands were made on them