$($i$)$ Ambient standards fix the maximum allowable level of pollution from an industry

$($ii$)$ Noise is a highly subjective feeling.

$($iii$)$ Due to inversion temperature increases with height.

$($iv$)$ Concession agreements are commonly used to implement inter$-$governmental partnerships.

$($v$)$ Quality standards are uniform throughout the world.

$($vi$)$ Sound travels faster in air compared to in solids

$($vii$)$ Sound pressure levels can be added directly using simple arithmetic.

$($viii$)$ Zoning helps to concentrate the activities harmful to the environment

$($ix$)$ In Oman rights are granted to a corporation using Royal Decrees

$($x$)$ EIA report is submitted to government after the completion of the project.