Answer:
The spread of many viral diseases can be prevented by hygienic factors such as efficient sanitation facilities, effective waste disposal, clean water, and personal cleanliness. Active immunization by vaccines (antigen-containing preparations that elicit the synthesis of antibodies and thus immunity) has been useful in preventing common epidemics caused by acutely infectious viruses.
Explanation:
Mark as brainliest please
Answer: the height of the plant
Explanation:
Hair and nails are part<span> of the integumentary </span>system<span>.</span>
Explanation:
I think the answer is contraceptive pills but not sure
It help because if the the plouttion is because of water it will rain