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I’m working on a Writing exercise and need support

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I’m working on a Writing exercise and need support.

QUESTION 2

1. Describe dissolved oxygen, biochemical oxygen demand, and chemical oxygen demand. How are they different? What is the usefulness of knowing the concentration of each of them?
   
   Your response should be at least 200 words in length.

QUESTION 3

1. What are the benefits of a wastewater treatment plant? In your response, include the origins of municipal wastewater treatment.
   
   Your response should be at least 200 words in length.

Provide a comprehensive overview of Occupational Safety and Health Administration (OSHA) General Duty Clause. Your response is to include (a) the intended purpose of the clause; (b) the elements required for its use by an OSHA compliance officer; and (c) your personal opinion on the use of the clause by compliance officers. Your response must be at least 200 words in length.

You are the environmental health and safety (EHS) manager for a large manufacturing facility and are required to prepare the annual report to Occupational Safety and Health Administration (OSHA) using the OSHA 300 and 300A forms. During the previous 12 months (January–December), the facility had 2 DART injuries. There were a total of 186,234 hours worked. Calculate the Days Away Restricted or Transferred (DART) Rate, and explain the methodology. Your response must be at least 200 words in length.