oxygen. 99% of your body is composed of oxygen, nitrogen, hydrogen, calcium. 85% of your body is composed with other elements. I hope that helps!!!
A gas is given off when two substances are mixed.
<u>physical change: A copper rod is hammered into a thin sheet. </u>
A solid forms when two clear liquids are mixed.
A matchstick changes color when it burns.
explanation
a physicals change vs chemical
physical change is like cutting, changing shape etc, it the molecules that make it and the chemicals of it stay same
chemical change when it chemically changed such as cooking meat
I would hafto say that it breakes it down because it doesn't have the correct parts to it like a puzzle,it needs to have all the parts to be complete
Glucose = chemical energy for living things
RiboNucleicAcid... contains Ribose
DeoxyriboNucleic Acid.. contains Deoxyribose
Galactose is a milk sugar