General Knowledge For FPSC, PPSC, NTS, CSS And Various Exams Geography Exercise 02 (Facts About Earth)

Muhammad Tahir January 19, 2019

General Knowledge For FPSC, PPSC, NTS, CSS

And Various Exams Geography Exercise 02

(Facts About Earth)

Largest element found in earth crust is Silicon, second is Aluminum
Polar diameter of earth is 7900 miles
Equatorial diameter is 7927 miles = 12,756 km
Earth’s polar diameter is shorter than the equatorial diameter by 43 km
Distance of equator from either of poles is 10,002 km
World is divided into 24 time zones
Age of earth is 5 billion years
Speed of earth in orbit around sun is 8.5 miles/sec = 1600 km/min = 29 km/sec
Weight of earth is 6586 x 10 raise to 18 tons
Earth has 46.6% oxygen and 27.7% silicon
On 21st June, sun is vertically overhead the Tropic of Cancer
The South Temperate zone lies between Capricorn and Antarctic circle
At equator the duration of the day is 12 hours
510 million square kilometers is the total surface area of the earth
Sun is 400 times larger than the Moon.
About 6 billion people living on the Earth.
When are you most likely to see a penumbra: During an Eclipse
At equator an object weights the least.
A wind, which reverses seasonally, is Monsoon.
Water is the most powerful source of erosion
Tropic of cancer crosses Pakistan.
Spring tides occur at new moon or at full moon.
Neap tides occur at first and third quarters of the moon.
Oceans are on average 4 km deep.
Frozen water covers about 10% of the earth
Solar eclipse occurs on new moon.
Lunar eclipse occurs on full moon.
The standard time of England is known as Greenwich Mean Time. T is local time of Greenwich observatory which on 0° longitude.
Daylight saving time begun during WWI.
There are three belts of calm viz: Doldrums, Tropic of Cancer & Tropic of Capricorn.
Horn of Africa is Ethiopia, Djibouti and Somalia.
Kimberley is associated with Diamonds.
In Titusfills in Pennsylvania (US) is world’s first oil well drilled.
Thickness of earth crustes 20 miles.
Max height of cloud 20,000.