Answer:
silicon dioxide Si02 and diamond
Explanation:
because it's commonly found in nature
The right answer is B.
Cholera vaccination is only recommended for staff who have to intervene with patients in an epidemic situation. In all other cases, effective prevention is provided by good personal hygiene (washing hands) and food.
It is also important to know that this vaccine does not protect permanently: It protects only about 90% within 6 months, then to 50% within 3 years.
A Boundary Is A Line That Marks A Limit Of Space. So If You Live In A Neighborhood, Then There Would Be Fences, And That Would Be A Boundary line. It Marks Space And Divides Space. Hope That Helps.
Animals need to eat or consume food
Answer:
yes
Explanation:
it will cost less to raise very productive animals because the money that would have been spent on treating infections would be put into a more productive venture
