Question

which of the following is an example of a macroscopic observation?
the atoms in gold are close - packed within a crystal lattice structure.
a nucleus is made up of positive protons and neutral electrons.
a basketball is an orange sphere made from leather or rubber.
an electron is most likely to be found in an atoms electron cloud.

Explanation:

Macroscopic observations are those that can be seen with the naked eye. A basketball being an orange sphere made from leather or rubber is something that can be observed without the need for a microscope or other scientific equipment. The other options involve atoms, nuclei, and electrons, which are microscopic or sub - microscopic entities.

Answer:

A basketball is an orange sphere made from leather or rubber.