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The top documents tagged [nitrogen fixing]
I. Introduction to Ecology. A. Organization of the Biosphere -Earth’s life supporting layer of air, soil and water. 1. Ecosystem- A physically distinct,
231 views
Soil. Soil is… A combination of weathered rock (sediments), humus (decaying organic matter such as dead plants and animals), air and water
238 views
I. Introduction to Ecology. A.Organization of the Biosphere - Earth’s life supporting layer of air, soil and water. 1. Ecosystem- A physically distinct,
217 views
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