World Geography
🔒 Log in to trackSolar system, Earth's motions and time, interior and rocks, atmosphere and winds, oceans and currents, continental superlatives and boundary lines. CGL usually asks one question here — local winds, planets, straits and 'largest/longest' facts dominate.
One page per subtopic: detailed notes, every question type, formulas, tricks and practice sets.
Every formula on one printable page, grouped by subtopic.
4 exam-level questions worked step by step.
119 questions — untimed practice or a timed test with analysis.
Track record in the exam
Questions per shift in recent SSC CGL papers.
Test difficulty mix (119 questions)
Question patterns exams keep repeating
Taken from previous-year papers. If a pattern is marked "very common", expect to see it in your exam.
Planet facts
very common"Largest / hottest / smallest planet", "red planet", "Earth's twin".
Mercury = smallest, Venus = hottest and Earth's twin, Mars = red planet.
Jupiter = largest, Saturn = famous rings.
Which is the largest planet of the solar system?
The big gas planets are Jupiter, Saturn, Uranus and Neptune
Jupiter is the biggest of them
Its moon Ganymede is the largest moon in the solar system
Jupiter
Longitude and time
occasional"Two places 15° apart: what is the time difference?"
1° of longitude = 4 minutes of time.
Places in the east are ahead; places in the west are behind.
What is the time difference between two places 15° of longitude apart?
15 × 4 = 60 minutes
60 minutes = 1 hour
The eastern place is ahead
1 hour
Earth's layers and earthquakes
occasional"Which boundary separates the mantle and the core?" or "which wave cannot pass through liquid?"
Moho separates the crust and the mantle. Gutenberg separates the mantle and the core.
S-waves cannot pass through liquid.
Which discontinuity separates the mantle from the core?
Earth's layers from the top: crust, mantle, core
The crust-mantle boundary is Moho
The mantle-core boundary is at about 2,900 km depth and is called Gutenberg
Gutenberg discontinuity
Layers of the atmosphere
common"Weather occurs in which layer?" or "ozone layer is in which layer?"
Layers from the ground: troposphere, stratosphere, mesosphere, thermosphere, exosphere.
Weather = troposphere, ozone layer = stratosphere, aurora = thermosphere.
In which layer of the atmosphere is the ozone layer found?
The layers go up from the ground
The 1st layer is the troposphere, where weather happens
The 2nd layer holds the ozone layer, the stratosphere
Stratosphere
Local wind and its region
very common"Chinook / Loo / Mistral is a wind of which region?"
Warm winds: Loo = north India, Chinook = Rockies, Foehn = Alps, Sirocco = Sahara to Italy.
Cold winds: Mistral = France, Bora = Adriatic, Buran = Russia.
The Chinook, called the "snow eater", blows down which mountains?
The Chinook is a warm, dry wind
It blows down the eastern slopes of the Rockies
It melts snow fast, so it is called the "snow eater"
Rockies
Straits and canals
common"Which strait lies between X and Y?" or "Suez Canal joins which seas?"
Gibraltar = Spain and Morocco. Hormuz = Persian Gulf and Gulf of Oman. Palk = India and Sri Lanka.
Suez joins the Mediterranean and the Red Sea. Panama joins the Atlantic and the Pacific.
The Suez Canal joins the Mediterranean Sea to which sea?
The Suez Canal is in Egypt
It links the Mediterranean with one other sea
The Panama Canal is the one joining the Atlantic and the Pacific
So the answer is the Red Sea
Ocean currents
occasional"Which is a warm / cold current?" or "which current is linked with the Atacama?"
Warm: Gulf Stream, Kuroshio, Brazil, Agulhas.
Cold: Labrador, Canary, Benguela, Humboldt (Peru).
Which cold current along South America's west coast is linked with the Atacama desert?
The current flows along the coast of Peru and Chile
It is cold, so the coast gets little rain
This is why the Atacama is so dry
Humboldt current
Grasslands and old names
common"Prairies / Pampas / Steppes are grasslands of..." or "old name of Sri Lanka".
Prairies = North America, Pampas = Argentina, Steppes = Eurasia, Veld = South Africa, Downs = Australia.
Old names: Ceylon = Sri Lanka, Siam = Thailand, Persia = Iran.
The temperate grasslands of Eurasia are called what?
Prairies are in North America
Pampas are in Argentina
The Eurasian ones are the Steppes
Steppes