The sentence <em>Dogs and cats sometimes fight in a veterinarian's waiting room </em>is A) a simple sentence.
A simple sentence has only one independent clause, and this sentence has only one independent clause (only one verb) so it has to be simple.
D. Holding your nose
Your sense of smell is a big part of your taste, which is why it helps to plug your nose when eating something bad.
Answer: the first one
Explanation: the rest are very wasteful :)
-Melting Icebergs, glaciers, and ice sheets
-sea level rise
-wildfire
With water it's the high surface tension property, combined with the fiber construction of paper towels. :)