Oxygen gas contributes to the green house effect
Answer:
Dead plant matter
Explanation:
Saprotrophs feed by a process known as absorptive nutrition, in which the nutritional substrate (e.g., dead organism or other nonliving organic matter) is directly digested by a variety of enzymes that are excreted by the saprotroph.
<span>Chemical properties, such as density, must be observed when a substance is in its natural state at room temperature and normal atmospheric pressure.</span>
Your answer is nitrogen fixing bacteria
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