Coal Is in Limited Supply Because Most of It Was

question 38

True/False

Coal is in limited supply because most of it was formed early in earth's history,billions of years ago,before the atmosphere contained free oxygen; it cannot form today.

---

Definitions:

Improper Fraction

A fraction in which the top number is greater than or equal to the bottom number.

Mixed Fraction

A mathematical expression combining a whole number and a proper fraction.

Mixed Fraction

A number consisting of an integer and a proper fraction (e.g., 3 1/2).

Whole Number

Non-negative integers, including zero, without fractions or decimals, representing complete units.