Hey there!
Well, qualitative observation is basically a measurement and it can be measured exactly.
Out of all the choices, your answer is C. Joseph is observing the color of the reaction mixture to see whether proteins are present in the given solution. This is because you can quickly tell if there are proteins present or not.
Options A and B are not as easy to measure.
Hope this helps you.
Have a great day!
Answer: Nuclear power plants produce some sort of nuclear waste called radioactive elements.
Explanation:
Answer:
Mass amount of CO2 in the atmosphere
The cell would be eukaryotic