The answer depends on what is indicated.
Yes, but they are imaginary - but are needed in many mathematical calculations. The square root of negative 1 is indicated as the letter "i".
The answer is indicated.
Depositing will be indicated by + whereas withdrawing will be indicated by-.
Acceleration is indicated on a speed/time graph.
apostrophe, such as in "could've" for "could have" or "don't" for "do not".
a colon
Well, you didn't indicate the atom so I'll do what I can. The formula for acetic acid is CH3COOH. If the indicated letter in the formula is C, the atom is carbon. If the indicated letter in the formula is H, the atom is hydrogen. If the indicated letter in the formula is O, the atom is hydrogen.
Oxygen.
Feature A Feature
-ene is the suffix of alkenes, hydrocarbons with the general formula CnH2n.
A
an apostrophe
Isthmus
"enclosure"
"enclosure"
knoll