Dental health care is a big part of people’s live it includes brushing your teeth with tooth paste throughly and properly and also flossing daily and sometimes even braces is need to make sure the teeth grow in properly
I think it is the first one
Yellow Marrow is common in the skeleton in old age but not in a childhood skeleton.
.The answer to this question is: C. ionic bond
In general, Ion particle are <span>formed when atoms lose or gain electron (when loses electron, ion become positive. When gaining it, ions become negatively charged)
Among the chemical substances, Metal atoms had the positive ions and nonmetal atoms will have negative ions</span>
I believe the best option to your question will be A.