Answer: C
Explanation: I got it right.
<span>When an ionic bond is formed between sodium (na) and chlorine (cl), the resulting molecule is called halite (salt). Ionic bonds involve the transfer of valence electrons. When this occurs between metals and non-metals, the metal loses an electron (becoming a cation) and the non-metal gains an electron (becoming an anion).</span>
Answer: Elevation
Explanation:
The altitude of a feature of the earth's surface is usually called its elevation, vertical distance from a datum plane, usually mean sea level to a point above the earth. Often used synonymously with altitude, elevation is the height on the earth's surface and altitude, the height in space above the surface.
Answer:
This statement is true.
Explanation:
Palaeontology can be described as the field of science under which the history of the earth is studied. Scientists use fossils to study the history of the earth as they provide evidence for history.
Fossils can be described as the remains of old, dead plants, animals, fungi, prokaryotes which are imprinted on rocks. These imprints provide evidence for the kind of organisms that once inhabited the land. For examples, fossil studies showed the existence of dinosaurs which are now extinct.