Greenhouse Effect Acid Rain
It is the exchange of incoming and It refers to a mixture of wet and dry
outgoing radiation of greenhouse gases deposition (deposited material such as
that warms the Earth. snow) from the atmosphere containing
Carbon dioxide, ozone, water vapor, higher than normal amounts of nitric and
methane, nitorus oxide, sulfuric acids.
chlorofluorocarbons, and a few other gases It has pH less than 5 due to oxides of
are greenhouse gases. nitrogen and sulpher. The pH value of
normal rain water is 5.6.
It is the increase of Earth"s average surface
temperature due to effect of greenhouse gases, It is the sum of all solid and liquid particles
such as carbon dioxide emissions from suspended in air, many of which are
burning fossil fuels or from deforestation, hazardous. This complex mixture contains for
which trap heat that would otherwise escape instance dust, pollen, soot, smoke, and liquid
from Earth. This is a type of greenhouse droplets.
It is the gradual increase in the average
temperature of the Earth"s atmosphere and its Smog is air pollution that reduces
oceans, a change that is believed to be visibility.
permanently changing the Earth’s climate. It is the mixture of smoke and fog caused
a major air pollution problem.
Effects of global warming It occurs when emissions from industry,
motor vehicles, incinerators, open burning
Increase of temperature on the earth by
and other sources accumulate under
about 3° to 5° C (5.4° to 9° Fahrenheit) by
certain climatic conditions.
the year 2100.
Rise of sea levels by at least 25 meters (82
feet) by the year 2100.
CARBON and ITS COMPOUND
CARBON Catenation : Due to small size of carbon,
it has a unique ability to combine with
It is a chemical element of group 14 on the other carbon atoms to form long chains.
periodic table, with symbol C and atomic Carbon occurs in two forms in nature.
Its electron configuration is 2, 4. Free State (allotropes) : graphite, diamond,
It is nonmetallic and tetravalent - making Fullerene
four electrons available to form covalent
chemical bonds. Combined State : Carbon Combines with
other elements to form compounds such as
It is the fourth most abundant element in
carbon monoxide, carbon dioxide, etc.
the universe (hydrogen, helium, and
oxygen are found in higher amounts, by