Nineteen billion, six hundred seventy-three million, eight hundred ninety thousand, ninety-four.
There are no hyphens in the word ago.
Yes, hyphens are used in word fractions when they are written out in text. For example, you would write "one-third" or "two-fifths" with a hyphen. However, when using fractions in numerical form, like 1/3 or 2/5, hyphens are not necessary.
The correct placement of hyphens in "microorganism" typically does not require any hyphens, as it is a single, compound word. However, if you're using it in a compound adjective form, such as "micro-organism-related studies," the hyphen would be used to clarify the relationship. In general usage, though, "microorganism" is written as one word without hyphens.
Hyphens are used to link words together to form compound words, such as "well-being" or "mother-in-law." They can also be used to separate syllables in words that are broken at the end of a line in writing. Additionally, hyphens are used in some prefixes, suffixes, and to avoid ambiguity or confusion in writing.
hyphen
They are considered as one word.
Not necessarily. There is no word or phrase in English that requires a comma.
path-oecologist
sisters-in-law
The word "affection" does not require a hyphen.
Because hyphens are dashes. Word changes double dashes into em dashes (the long dashes) automatically if there is a space before and after the double dash.
Sister-in-law. With the hyphens, it's one word. : )