Mary Smith obtained a density of 2.226 g/mL for a metal sample. Using a different method, Joseph Henry obtained a value of 2.335 g/mL for the same metal sample. Which student’s value is more accurate? Use the definition of accuracy to explain your answer.

We need true value to find out who is more accurate.

Explanation:

Precision refers to the closeness of two or more measurements to each other.

Accuracy refers to the closeness of a measured value to a standard or known value.

For Example: If you weigh a given substance five times and you get 3.0 kg each time. Then the measurement is very precise.

For Example: If the mass of a substance is 3.0 kg and one person weighed 3.05 kg and another person weighed 3.2 kg. Then, the weight measured by first person is more accurate.

According to the question:

Density measured by Mary = 2.226 g /ml

Density measured by Joseph= 2.335 g /ml

As, the standard or known value is not given, we can not know which student’s value is more accurate

give brainliest

water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

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