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Canyon, deepest, flat, island, range, oceans, Plain
(1) _______ Lake Baikal is the (2)________ in the world.

(3)_______ Pacific is the largest of the four (4)________.

(5)________Cordillera is the most extensive mountain (6)_________ in the world. One of the most famous tourist attraction in (7) ________ America is (8) ________ Grand (9)_________ in (10) _________ Arizona.

(11) __________ Australia is the world’s largest (12) __________.

The relief of (13) ________ Russia is mostly (14) _____. It’s located on (15) _____ Great Russian (16) ________ and (17) ________ Western Siberian Plain.