Weathering in the Tropics and Temperate Regions
Q: Which one of the following is known as a potent rock breaker in temperate latitudes?
Did You Know?
First arrange 7 red marbles: there is 1 way (they are identical). This creates 8 gaps (including ends). Choose 3 of these 8 gaps to place green marbles: C(8,3) = 56. Green marbles are identical, so no further arrangement.
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