Black absorbs more heat.

Federalism, also referred to as federal government, a national or international political system in which two levels of government control the same territory and citizens. The word federal comes from the Latin term which means “to trust.” Countries with federal political systems have both a central government and governments based in smaller political units, usually … Read more

Abdomen, in anatomy, the cavity of the body between the chest and the pelvis in humans and all other vertebrates. The abdominal cavity contains major organs of the digestive, urinary, and reproductive systems.