Final answer:
The masses of meteorites are considered quantitative continuous data because they can be measured in fractional kilograms with no discrete separation.
Step-by-step explanation:
The masses in kilograms of different meteorites represents quantitative continuous data. This is because mass is a measurable quantity that can be expressed in a range of values, including decimals and fractions, hence providing a continuous spectrum. In other words, meteorite masses can vary by a very small amount (measurable to several decimal places), reflecting the continuous nature of this type of data.