Why is a quantitative observation more useful than a non-quantitative one? Which of the following are quantitative?

(a) The Sun rises in the east, (b) A person weighs one-sixth as much on the Moo nas on Earth, (c) Ice floats on water, (d) A hand pump cannot draw water from a well more than 34 ft deep.

An observation that can be counted is known as quantitative observation. On the other hand, an observation that does not contain any numerical data is known as non-quantitative observation.

Therefore, given observations are classified as follows.

(a) The Sun rises in the east - It is a non-quantitative observation as it cannot be measured.

(b) A person weighs one-sixth as much on the Moon as on Earth - It is a quantitative observation as it can be measured because we know the mass of moon. Hence, we can find out the weight of person.

(c) Ice floats on water - It is a non-quantitative observation as it cannot be measured.

(d) A hand pump cannot draw water from a well more than 34 ft deep _ It is a quantitative observation because it is measure that more than 34 ft deep water cannot be drawn by the pump.