Question

Jill uses this thermometer to measure the temperature of a liquid. She reports her results as 72 degrees . Is this a good description? A.this description needs a unit describing the system of measurement . B. This description is clear and can be understood by other measurements. C. This is a perfect description because it gives both number and a limit. D. This description needs a chemical point to be a good description.

Answer 1

The answer is (a)/This description needs a unit ....measurement.

Because this will only tell us whether the temp. is in Celsius, fahrenheit or kelvin

Answer 2

A.this description needs a unit describing the system of measurement

Step-by-step explanation:

A unit is required to understand the physical quantity being measured. 72 degrees creates a confusion about the reference scale. It could be degree Celsius or degree Fahrenheit.

It is known that 0°C to 32°F. So, the reference changes and hence, it is important to describe the unit. Option A is correct.