Author Question: ____________________ are distinct layers in well-developed soils. Fill in the blank(s) with correct ... (Read 64 times)

biggirl4568

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___________________ _ are distinct layers in well-developed soils.
 Fill in the blank(s) with correct word

Question 2

An undesirable or unhealthy contamination in an environment is called _______________.
 Fill in the blank(s) with correct word



Dominic

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Answer to Question 1

Soil horizons

Answer to Question 2

pollution



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