The mass is located in the trunk of the tree
a tree
the nucleus
Carbon dioxide (CO^2)
All protons have the same mass regardless of where they come from. It should be noted, however, that most of the mass in atoms comes from the forces holding the atom together.
X-mass tree.
A tree is not an isolated system. It gets nutritients from surrounding environment to grow and build its mass. A total mass of tree plus its environment is constant.
They are most likely made of cotton which comes from a tree.
About 7000 come from a tree
Van Helmont concluded that most of the mass the plant gained had come from water.
The mass of all caterpillars is greater.
Walnuts grow on the Walnut Tree. The most common varieties are from England and Persia.
A tree has mass and volume, therefore it is matter.