A/an gas is an imaginary gas whose particles are infinitely small and do not interact with each other.

The PIPES Act requires the PHMSA to set minimum safety standards for underground natural gas storage facilities and review and update current pipeline safety standards for liquefied natural gas LNG. Additionally certain underwater oil pipelines now have greater inspection requirements. On October 3 the PHMSA issued an interim final rule allowing the agency to declare emergency orders on oil and natural gas pipelines especially in cases where public health and safety are a concern according to a report from Natural Gas Intelligence.   i hope this is what you were looking for if not im sorry

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

6.4 cm (max) - 25 cm (min)