Which of these is an environmental benefit of converting to solar energy? O A. an increase in the use of fossil fuels
O B. a decrease in air pollution
O C. an increase in the cost of energy
O D. a decrease in electrical energy production

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow