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.
When you put vinegar and baking soda together, you get a chemical. reaction, and this chemical reaction produces carbon dioxide gas. A chemical reaction happens when one set of substances (called the reactants) transforms into different substances (called the products).