Question

Which Of The Following Statement Is Or Are Correct?

(a)Measurement is a process of comparing an object with standard unit of measurement.

(b)Hand-span, fore-arm length and footstep cannot be used as standard units of measurement.

(c)Unit of measurement which has a fixed value which does not change from person to person or place to place.

(d)All the above.​

Answer 1

D) All the above

• Carbon dioxide is a colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.