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 hot conditions have fire crews on alert. Los Angeles firefighters knocked down a two-acre brush fire in West Hills in the San Fernando Valley on Saturday afternoon. Meanwhile, hundreds of Riverside County firefighters were battling a 35-acre fire along the 15 Freeway in Temecula.