The seven units that form the basis for all derived units in the metric system are called the base units. Math: Powers of ten. Language: Prefixes. Kilograms: another kind of measurement. Hope this helped :)
Answer:
Digestion, distribution of nutrients throughout the body, and it can serve as a hydrostatic skeleton.
The composition of a star is abundant in hydrogen and helium, both of which are two of the lightest elements. Because they are very light, they are usually unstable. To becomes stable, hydrogen atoms spontaneously combine with each other through a radiation process called nuclear fusion, to yield helium atoms. This process requires very high energy in the form of heat. Therefore, these lighter elements are burned in order to keep the star alive with energy.
Therefore, the answer is D.
The second step of translation
The time period was called the Hadean Eon, and the rocks themselves are nearly 4.4 billion years old
