Answer:
Contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level. The diagram illustrates how contour lines show relief by joining points of equal elevation. Encyclopædia Britannica, Inc. Video Player is loading.
The answer is; atoms or molecules
The chemical structure of an substance is dependent on the molecule geometry of its molecules. The molecule geometry (spatial arrangement of atoms in the molecular space) depends also on the bonding between the electronic structure of atoms that make up the compound or element. This will determine how the molecules and atoms interact with each other and how they consequently form a lattice.
We receive solar energy from the sun
