Which river, 210 miles long, whose principal tributaries are the Wye, Avon and Teme, empties into the Bristol channel?

Question

The tributaries of which river are the Olifants River (Elephant River), the Shashe River, Mzingwane River, Crocodile River, Mwenezi River and Luvuhu River?

Answer 1

Result -
Severn