Math, asked by deepanshu9650462759, 4 months ago

in how many ways can 9 things be arranged taken 4 at a time and in how many ways can be arrangement a particular thing can be include

Answers

Answered by paramjeet621

Answer:

Groundwater is naturally replenished by surface water from precipitation, streams, and rivers when this recharge reaches the water table. ... The figure shows how deep groundwater (which is quite distant from the surface recharge) can take a very long time to complete its natural cycle.

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