<span>The reason why foods such as pineapples, pickles and tomatoes can be treated with temperatures less than 100 is because t</span>hese foods are highly acidic (pH<4.6) which provides a hurdle to microorganims.
Low-acid foods have pH values higher than 4.6, while a<span>cid foods have a pH of 4.6 or lower. They include fruits, pickles, sauerkraut, jams, jellies, marmalades, and fruit butters.</span>
Answer:
Up to 7,000kilometers in 8weeks
The energy in coal<span> comes from energy that was stored in giant plants that lived hundreds of millions of years ago in swamp forests, even before the dinosaurs! When these giant plants and ferns died, they </span>formed<span>layers at the bottom of the swamps. Water and dirt began to pile up on top of the dead plant remains.</span>
The active site, or variable region.
