Answer:
Environmental Tobacco Smoke
Cytoplasm surrounds the organelles , but are not inside of them
The discovery of DNA has allowed us to trace ancestors and find out how early humans lived, what they looked like, and who they were.
Polar molecules (with +/- charges) are attracted to water molecules and are hydrophilic. Nonpolar molecules are repelled by water and do not dissolve in water; are hydrophobic.
Quantum Physics help us understand the properties of solids, atoms, nuclei, sub-nuclear particles and light.
The word quantum refers to discreteness.