Wow.. Alexander the Great.... I remember learning about him... Any ways to answer your question your answer would be possibly D.. if i am incorrect then I am truly sorry.
Answer:
Photosynthesis is the process of where plants and other organisms use sunlight to get foods from water and carbon dioxide. Photosynthesis in a plant involves green pigment and generates oxygen.
Worlds first man made states
Roads, bridges, mass transit systems, airports and sea ports, and water
Answer:
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice.
Explanation: