DTS is also completely backwards compatible, but in a way that allows legacy AV receivers and other products to play back DTS-HD Master Audio files at up to 1.5 Mbps with up to 7.1 discrete channels at 96 kHz or 5.1 channels at 192 kHz.
Smog usually is produced through a complex set of photochemical reactions involving volatile organic compounds (VOC's) and nitrogen oxides in the presence of sunlight that result in the production of ozone.
2. A Nitrogen oxides (N0 2) causes smog and acid rain. It is produced from burning fuels including petrol, diesel and coal. 3. Carbon monoxide (CO) is a product by incomplete combustion of fuel such as natural gas, coal or wood.