Answer:
What the scientist is doing incorrectly is disposing of a chemical or biological waste in the common sewer.
Explanation:
One of the most important biosecurity measures is the proper disposal of chemical and biological waste. What the shown scientist is doing incorrectly is disposing of potentially harmful substances in a normal sewer.
<h3>What could he do to make their work in the lab safer?
</h3>
The main thing that must be done to maintain a safe laboratory is to perform proper disposal of chemical or biological waste, which must be placed in airtight containers and transported to a location for safe disposal.
- <em>Chemical waste is usually taken to a landfill where it can be neutralized.
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- <em>Biological waste is transported to incinerators for complete disposal.
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<h3>Why is it important to follow these procedures?
</h3>
Following these procedures is important to avoid chemical or biological contamination of both the environment and people.
The ancient Egyptians used the stars to tell when a flood was going to happen. Every summer a flood would happen but this also happened when the bright star Sirius rose before the sun.
Hope that helped ^^
C) carbon dioxide and water is the answer
The digestive system contains all four major tissue types, epithelial<span>, connective, muscle and nervous. e</span>pithelial<span> tissue lines the entire length the digestive tract. it is made up of many different types of cells, including goblet cells that secrete mucus.</span>
Leeches are parasitic because they suck blood not giving any benifit but harm.
