Facts of Earth Everyday Science One Liner MCQs

Facts of Earth Everyday Science One Liner MCQs

• 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 crust 20 miles.
• Max height of cloud 20,000.