what is causes that harm hydrosphere?
138705
Don't fully understand question.  Hydrosphere means water so anything that could contaminate water (forest fires that pollute with ash, chemicals, etc.  Type in hydrosphere harm and see site below.
323653
Its due to some micro-organisms in the soil.\nTheir sporebags rupture on contact with water, and they enter the air.
43911
there could be many causes such as environment factors, stress, diet or even allergy to certain substances...
982745
Because of scaling, corrosion, and sediment problems.  The dissolved solids in seawater tend to cause excessive problems.  \n\nIf there is any evaporation taking place, the water vapor leaves behind all of the dissolved solids, and scaling and corrosion can occur even where there is no evaporation.
57901
Exposure to high intensity sound.\naspirin overdose.\nphysical trauma.
666152
When toxic substances enter lakes, streams, rivers, oceans, and other water bodies, they get dissolved or lie suspended in water or get deposited on the bed. This results in the pollution of water whereby the quality of the water deteriorates, affecting aquatic ecosystems. Pollutants can also seep down and affect the groundwater deposits.\n\nWater pollution has many sources. The most polluting of them are the city sewage and industrial waste discharged into the rivers. The facilities to treat waste water are not adequate in any city in India. Presently, only about 10% of the waste water generated is treated; the rest is discharged as it is into our water bodies. Due to this, pollutants enter groundwater, rivers, and other water bodies. Such water, which ultimately ends up in our households, is often highly contaminated and carries disease-causing microbes. Agricultural run-off, or the water from the fields that drains into rivers, is another major water pollutant as it contains fertilizers and pesticides.
343568
Its not.  What you see on top of water is hydrocarbon polution.  most really deadly polutants such as hexa valent chromium deposit in the river bed or lake floor and continue to contaminate the water for several years.
1080282
try a sequestering agent like Super Sequa-Sol, it is in no way toxic and can be added while people are in the water.
924574
Water pollution is a large set of adverse effects upon water bodies (lakes, rivers, oceans, groundwater) caused by human activities. Although natural phenomena such as volcanoes, storms, earthquakes etc. also cause major changes in water quality and the ecological status of water, these are not deemed to be pollution. Water pollution has many causes and characteristics. Increases in nutrient loading may lead to eutrophication. Organic wastes such as sewage and farm waste impose high oxygen demands on the receiving water leading to oxygen depletion with potentially severe impacts on the whole eco-system. Industries discharge a variety of pollutants in their wastewater including heavy metals, organic toxins, oils, nutrients, and solids. Discharges can also have thermal effects, especially those from power stations, and these too reduce the available oxygen. Silt-bearing runoff from many activities including construction sites, forestry and farms can inhibit the penetration of sunlight through the water column restricting photosynthesis and causing blanketing of the lake or river bed which in turns damages the ecology.\n\nPollutants in water include a wide spectrum of chemicals, pathogens, and physical chemistry or sensory changes. Many of the chemical substances are toxic or even carcinogenic. Pathogens can obviously produce waterborne diseases in either human or animal hosts. Alteration of water's physical chemistry include acidity, conductivity, temperature, and excessive nutrient loading (eutrophication). Even many of the municipal water supplies in developed countries can present health risks. In the U.S.in 1972 stringent federal laws were enacted setting specific discharge limitations.\n\nPrincipal sources of water pollution are:\n\n \nLitter in the Water in the U.K.industrial discharge of chemical wastes and byproducts \ndischarge of poorly-treated or untreated sewage \nsurface runoff containing pesticides \nslash and burn farming practice, which is often an element within shifting cultivation agricultural systems \nsurface runoff containing spilled petroleum products \nsurface runoff from construction sites, farms, or paved and other impervious surfaces e.g. silt \ndischarge of contaminated and/or heated water used for industrial processes \nacid rain caused by industrial discharge of sulfur dioxide (by burning high-sulfur fossil fuels) \nexcess nutrients added by runoff containing detergents or fertilizers \nunderground storage tank leakage, leading to soil contamination, thence aquifer contamination
1105495
3 major factors Pump, volume, and container.\n\nPump (The heart) when damaged is unable to pump sufficiently to maintain systemic pressure.\n\nLow systemic volume( Hypovolemia) can be caused by numerous factors such as excessive vomiting, dehydration, blood loss due to trauma, excessive sweating, etc.\n\nYour blood vessels (container) dilate and constrict based on many factors. For example when scared, your vessels vasodilate (expand) creating more space in the container and thus lowers blood pressure.
859078
Water safety is characterised by microbiological, physical, chemical and radiological quality \n\nA poor water supply system can have negative health effects on people. Poorly treated or managed drinking water systems can result in an increase in illness (most likely gastrointestinal illness). \n\nPeople can also be more susceptible to endemic micro-organisms as they are potentially exposed to different, or higher, levels of pathogens .\n\nInfectious and parasitic diseases are still the principal cause of death and illness throughout the world, mostly because of the poor quality of water, and diarrhoea the first cause of morbidity.
546305
tap water maybe? you got sent out into space, eventually stars and such formed because of gravity, some other hydogens got turned into other elements by nuclear fusin, you probably did too but eventually fissioned back to hydrogen, at some point the sun and the earth were formed, you happened to be on earth, you probably were in a methane molecule back when the earth's atmosphere was methane, but then algae started photosynthesizing an oxygen atmosphere, at some point you broke away from the methan, met up with some oxygen and another hydrogen, and becaame water. as water, you keep getting turned into sugar by plants, but then animals eat you andturn you back into sugar.
1145145
Dissolved materials that can precipitate out of solution can cause problems with appliances. They are a particular problem with systems that heat water, because this increases precipitation and causes scale. This can reduce efficiency of heating elements, and can block pipes.\n\nHeating systems suffer less, because it is always the same water, so once the solids have deposited out there are no more to add to the scale, and this is very little scale. However, other dissolved materials can cause problems by leading to corrosion.
746587
no\nthe water evaporates too fast to cause any harm
927524
it can cause acid reflux
885028
There are different occurances in nature that are labelled "Red Tide". \n\nOne is caused by an over abundance of plankton in the ocean. This makes the water stinky and could make you sick if ingested.  \n\nThe other is caused by chemicals used by farmers to get rid of pests. It drains down into the ground water and eventually ends up in the ocean. It kills just about anything living in the water.
307846
potassium hydroxide-Its a very strong base inwater, and extremely toxic.