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Grade: 10
        
what is acid rainrain? how it is formed?what is formaen magnum ? what is scientific name for valves present in hear?
2 years ago

Answers : (3)

Vansh Tickoo
18 Points
							ACID RAIN IS THE RAIN COMPRISING OF ACIDS, NAMELY SULFURIC ACID AND NITRIC ACID. THIS RAIN IS FORMED WHEN THE OXIDES OF NITROGEN AND SULPHUR REACT WITH RAIN WATER TO FORM NITRIC ACID AND SULPHURIC ACID RESPECTIVELY. CARBONIC ACID IS ALSO PRESENT IN ACID RAIN BUT IT IS A WEAK ACID SO NOT CAUES MUCH DAMAGE. NITRIC AND SULPHURIC ACIDS BEING STRONG HAVE A DISASTROUS EFFECT ON BUILDINGS AND OTHER STRUCTURES.
REACTIONS:H2O+CO2->H2CO3
3NO2+H2O->2HNO3+NO
SO3+H2O->H2SO4
FORAMEN MAGNUM IS A CAVITY LIKE OPENING WHICH IS PRESENT AT THE CENTRE OF THE OCCIPITAL BONE(OCCIPITAL BONE IS A BONE PRESENT AT THE BASE OF CRANIUM)
IN THE LAST QUESTION (NOT VERY MUCH CLEAR) I THINK U ARE TALKING ABOUT THE SEMICIRCULAR CANALS OF EAR WHICH ARE POSTERIOR CANAL,HORIZONTAL CANAL AND SUPERIOR CANAL.
2 years ago
Siddharth Singh
100 Points
							rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.
						
one year ago
Scholr Boy
87 Points
							
Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Some governments have made efforts since the 1970s to reduce the release of sulfur dioxide and nitrogen oxide into the atmosphere with positive results. Nitrogen oxides can also be produced naturally by lightning strikes, and sulfur dioxide is produced by volcanic eruptions. Acid rain has been shown to have adverse impacts on forests, freshwaters and soils, killing insect and aquatic life-forms, causing paint to peel, corrosion of steel structures such as bridges, and weathering of stone buildings and statues as well as having impacts on human health.
one year ago
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