Because it involved countries all over the world, there was new technology such as chemical warfare, tanks, planes, etc. and it was unrestricted warfare. The countries were attacking civilians as well. Also there were diseases.
Answer:
Commas indicate a natural pause in the sentence.
The domain of the expression is all real numbers except where the expression is undefined. there is no real number that makes the expression undefined.<span>(<span><span>−∞</span>,∞</span>)</span><span>{<span>x|x∈R</span>}</span>
The correct answer would be True. Hope this helps
