Ten (10%). when an animal eats the plant, 10% of it will be used.
B. an atom
Atoms are the basic units of matter and the defining structure of elements.
All of them!
Composite subatomic particles (such as protons or atomic nuclei) are bound states of two or more elementary particles. For example, a proton<span> is made of two up </span>quarks<span> and one down quark, while the atomic nucleus of </span>helium-4<span> is composed of two protons and two </span><span>neutrons</span>
