earth

OXYGEN MOST ABUNDANT ELEMENT ON EARTH'S CRUST




IF EARTH STARTS ROTATING THE APPARENT VALUE OF g  ON ITS SURFACE WILL REMAIN THE SAME EVERYWHERE


AGE OF EARTH------4.5 BILLION YEARS





AN AEROPLANE TAKES OFF FROM 80 DEGREE NORTH LATITUDE, 50 DEGREE  EAST
LONGITUDE AND LANDS AT THE OPPOSITE END OF EARTH. WHERE DOES IT LAND 80 DEGREE SOUTH LAT/130 DEGREE W LONG


INTERNATIONAL DATE LINE-----BERING STRAIT




SNOW  LINE------- THE ALTITUDE ABOVE WHICH SNOW NEVER MELTS





DOLDRUMS------5^0 N TO 5^0S
HORSE LATITUDES---------30-35N TO 30-35 S
TORRID ZONE------231/2 N TO 231/2S
ROARING FORTIES-----40 S TO 60 S




NORTH POLE OF EARTH'S MAGNETIC FIELD LIES IN GEOGRAPHIC SOUTH



ONE DEGREE  OF CIRCUMFERENCE  OF THE EARTH  MEASURES----111 KM


SPEED OF REVOLUTION OF EARTH------30KM/SEC


MEAN RADIUS OF EARTH ---------6400 KM

TOTAL SURFACE AREA OF EARTH ----510 MILLION SQ.KM

AVERAGE DENSITY OF THE EARTH-------5.517g cm^ -3



Earth might face more Heat Waves: NASA
As per warnings of NASA, the Earth might face an intense summer heat wave than what it faced b/w 1951 to 1980.
Agency reveals that over the past 30 years the northern hemisphere has seen more "hot", "very hot"and “extremely
hot” summers (as classified by the agency).
Earth’s northern hemisphere, which has 90 % of the planet’s land, has become much more susceptible to experience
an extreme summer heat wave compared to a base period from 1951 to 1980.





Massive solar storm hits Earth
A pair of unusually large Solar Flares engulfed the Earth on Thursday March 8, 2012, but scientists held
that the planet may have lucked out. There were no reports of problems with power grids, GPS,
satellites or other technologies that are often disrupted by solar storms. Early indications show that it
was about 10 times stronger than the normal solar wind that hits Earth. The storm, which scientists
claimed to be the largest in five years, was triggered by a pair of solar flares early Tuesday March 6, 2012 and was
growing like a giant soap bubble. Initially, scientists figured the storm would be the worst since 2006, but it wasn’t so.
Several NASA spacecraft caught videos of the solar flare as it hurled a wave of solar plasma and charged particles,
called a Coronal Mass Ejection (CME), into space.