Carbon is found underground in the form of

What form of carbon dioxide is found underground?

Scientists probe underground depths of Earth's carbon cycle. Carbon in the fluid of the Earth's mantle is not in the form of carbon dioxide but rather in carbonate and bicarbonate ions, researchers found

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.