The first vaccine was developed for cowpox and smallpox.
Meats come from animals, and are filled with protein, minerals and saturated fats, whereas vegetables are grown, and contain vitamins, and also provide a good source of minerals and nutrients.
-hope this helps! Xx
Answer:
At the center of the Sun is its core, where nuclear fusion generates energy by converting hydrogen into helium. The core is surrounded by a layer called the radiation zone, which in turn is surrounded by the convection zone.
Explanation:
