|
Lead Mountain (Maine)
Lead Mountain, at high is a peak in eastern Maine. Lead Mountain is located north of the town of Beddington on the border of Hancock and Washington counties in Downeast Maine. The isolation of Lead Mountain is 35.73 miles, and it is easily visible from miles away along Maine state routes 9 and 193 The southern slopes of Lead Mountain are the location of the Bear Brook Watershed in Maine, a long-term research site dedicated to studying the effects of acid deposition on a landscape. Likewise, the southeast slopes of the mountain are drained by Bear Brook. The bedrock of the area contains small blebs of pyrrhotite, which may be mistaken for lead. Lead Mountain is located on private land, but can be hiked by the public. The primary route to Lead Mountain begins just north of the at the gated end of a dirt road southeast of the peak. The route follows the dirt road beyond the gate before turning up a path that ascends southeast of the summit before continuing up the east side of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hancock County, Maine
Hancock County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 55,478. Its county seat is Ellsworth. The county was incorporated on June 25, 1789, and named for John Hancock, the first governor of the Commonwealth of Massachusetts. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (32%) is water. The county high point is Cadillac Mountain, 1527 feet, the highest summit on the U.S. Atlantic seaboard. Adjacent counties * Penobscot County — north * Washington County — northeast *Waldo County — west * Knox County — southwest Demographics 2000 census As of the census of 2000, there were 51,791 people, 21,864 households, and 14,233 families living in the county. The population density was 33 people per square mile (13/km2). There were 33,945 housing units at an average density of 21 per square mile (8/km2). The racial makeup of the county was 97.61% White, 0.25% Bla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Deposition
Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average. The more acidic the acid rain is, the lower its pH is. Acid rain can have harmful effects on plants, aquatic animals, and infrastructure. Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Acid rain has been shown to have adverse impacts on forests, freshwaters, soils, microbes, insects and aquatic life-forms. In ecosystems, persistent acid rain reduces tree bark durability, leaving flora more susceptible to environmental stressors such as drought, heat/cold and pest infestation. Acid rain is also capable of detrimenting soil composition by stripping it of nutrients such as ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Mountain Wm1
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the group, lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
