Explain how extremes of pH limit growth. Majority of organisms live or grow in habitats between pH 6 and 8 obligate acidophiles: Euglena mutabilis-alga that grows between 0 and 1.0 pH Thermoplasma-archae that lives in hot coal piles at a pH of 1 to 2, and would lyse if exposed to pH 7.
Most of the current California wildfires are in the north, including a large one in Mendocino County and several others in the Sierra Nevada, the north coast and the San Joaquin Valley.
The Border fire, which is now 95% contained, is just one of many large fires crews have been battling in extremely hot, dry conditions. On Tuesday, authorities in Kern County announced the lifting of evacuation orders in the deadly Erskine fire â the worst wildfire to erupt in California so far this year. The blaze has raced across 46,000 acres and killed Byron McKaig, 81, and his 90-year-old wife, Gladys.