Read the following passage from the National Oocanic and Atmospheric Administration, or NOAA. Which word does NOT have a negativ
e connotation? Ocean acidification could threaten the manne food web by destroying coral reef habitat, reducing biodiversity, and potentially causing various species to go extinct. Such habitat destruction could affect fishing, tourism, and any human activity that involves the oceans.
A. Extinct B. Destruction C. Threaten D. Activity
The plural form of the word radius is <em>radii</em>.
I know it sounds weird, but this is correct. Adding <em>-s </em> at the end of the radius would make the word grammatically incorrect. This is because the word radius itself is a Latin word.
