What do u think which one of the above sentence is better???The rivers in Alaska, which includes the Yukon, Tanana, and Copper, are frozen during the winter.
The rivers in Alaska, which include the Yukon, Tanana, and Copper, are frozen during the winter.
Second, can WHICH refer to a NOUN PHRASE??? I mean here can we say that WHICH can refer to this whole "The rivers in Alaska" ??? A bit confused here so please suggest specially for this point.
