RRB GROUP D EXAM MOCK TEST Hindi buy
loco pilot old paper in hindi As we go deeper in the studies in we
can find what global warming is it this is the average temperature of the earth
is about 15degree celcius. The earth
temperature however fluctuates slowly over time the global temperature trend
has been generally upward in the last 18,000 years since the last ice age but
the rate of increase has recently accelerated this rapid warming loco pilot old paper in hindipdf may be the result
of an enhanced green house effect the trapping of heat by the atmosphere glass
in a green house is transparent to light but not to heat. The temperature inside a greenhouse rises
because the hear is unable to escape. On
earth green house gases carbon dioxide methane CFCs and others take the place
of glass hear that would otherwise
radiate away from the planet is absorbed and trapped by these causing a
rise in the surface temperature
rrb loco pilot model papers in hindi
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