Question

what is the plain surface​

Answer 1

Answer:

Step-by-step explanation:

n geography, a plain is a flat, sweeping landmass that generally does not change much in elevation. Plains occur as lowlands along valleys or on the doorsteps of mountains, as coastal plains, and as plateaus or uplands. ... In a few instances, deserts and rainforests can also be plains.

Answer 2

Step-by-step explanation:

In geometry a "plane" is a flat surface with no thickness. But a "plain" is a treeless mostly flat expanse of land ... it is also flat, but not in the pure sense we use in geometry.

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