Coastal regions have abundant flora and fauna. the climate in coastal regions is moderated by warmer ocean waters. which sentence combines the two sentences using an adjective clause? a. coastal regions have abundant flora and fauna, and the climate there is moderated by warmer ocean waters. b. coastal regions and places with warmer ocean waters have abundant flora and fauna. c. the climate in coastal regions is moderated by warmer ocean waters, and the flora and fauna are abundant. d. coastal regions, where climate is moderated by warmer ocean waters, have abundant flora and fauna..