Biochemical Oxygen Demand Is the Amount of Oxygen Needed

question 6

Multiple Choice

Biochemical oxygen demand is the amount of oxygen needed

• A) By humans to breathe.
• B) By all organisms in a system, both plants and animals.
• C) For aerobic breakdown of organic matter in a system.
• D) To destroy all chemical pollutants in a system.

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Definitions:

Laboratory Observation

Research method in which all participants are observed under the same controlled conditions.

One-Way Mirror

A mirror that is reflective on one side and transparent on the other, often used in observational research and police line-ups to observe subjects without being seen.

Research Method

A systematic plan for conducting research, including techniques and procedures for collecting and analyzing data to gain new knowledge or understand a topic better.

Research Design

The framework or plan for a study that guides the collection and analysis of data to ensure valid and reliable results.