From the brightness of the light of course. If the brightness is increasing it means the the light source is approaching and if the brightness is decreasing it means the light source is leaving.
Answer:
Elements are listed in numerical order by <u>atomic number.</u>
Answer:
From Top Left to Bottom Right: Spinosaurus, Gallimimus, Stegosaurus, Styracosaurus, Apatosaurus, Pachycephalosaurus, Parasaurolophus, Triceratops, Brachiosaurus, Utahraptor, Ankylosaurus, Ouranosaurus, Euoplocephalus, Tyrannosaurus, Allosaurus, and Compsognathus