3.90 N S North-South Primitive Meridian E East

4.( 1) The sun is from west to east and counterclockwise.

(2) On the contrary, (3) cold, warm and hot (4) 30-60, 60-90 (5) are in reverse order.

5.( 1) Scale direction (2) Smaller, Larger, Smaller (3) North (5) Relative height (6) Plain

Two. 1. North Arctic Ocean South Antarctica 2. Land and sea 3. Asia, Oceania, Pacific and Atlantic. Asia Greenland Suez Canal Panama Canal Bering Strait Ural Mountain ural river 6. Wei Gena 7. Shell 7 8. A stable and active volcano.