The smallest number of distinct points that can define a plane would be 3 points. Below this value, you cannot create a plane, you can only create a line or a point. A plane that has three point is called a triangle. Hope this helps. Have a nice day.
Canada's largest island is Baffin island
Antarctica and Greenland provide examples of polar climates.
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How far deep they were dug up shows us what time period they came from so we can classify what dinosaur it is