Answered

Determine whether the phrase ( in quotations ) or clause In each sentence is restrictive or nonrestrictive.

  1. Lightning that strikes in dry forests can cause forest fires.
ARestrictive; no commas needed
BNonrestrictive; commas are needed
  1. Often thunderstorms produce lightning “that ignites wet areas”
ARestrictive; no commas needed
BNonrestrictive; commas are needed

Verified Answer :

WorldlyGlass49
  1. The correct answer is A, because if there were a comma, or if that clause was deleted, the whole sentence would have a completely different meaning.
    2. It is also restrictive, the same as in the first example.