The stream was unpolluted and clean.
The ground was unpolluted with the toxin.
It's obvious that you don't know how to use the word obvious in a sentence because you asked a question on how to use it.
Today it will rain, natheless, we will still play street hockey
no. Well yeah it's okay to use a word twice.
The pH value of unpolluted rainwater is typically around 5.6, which is slightly acidic due to the presence of carbon dioxide in the atmosphere.
The word "ingenuous" would be used in a sentence like the word primitive. A example would be: "He told the truth because he was ingenuous." It can be also used for the phrase "ingenuous question".
If water is unpolluted, fish thrive in it.
Dragonflies live in unpolluted areas like an unpolluted lake.
That sentence needs a verb in it.
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.
Just use it! Or do you mean, can you use the word beheld in a sentence.
How do you use the word decibel in a sentence?What is decibel used for?
Since that is not a word I would not attempt to use it in a sentence.
You just did use the word colonize in a sentence.
You can use the word Terrorist in a sentence as " Muslims are not terrorist ".
use the word puzzlement in a sentence
the word rag in a sentence