Which of the following statements given above is/are incorrect ?
Anonymous Quiz
13%
A. 1 only
17%
B. 2 only
58%
C. Both 1 and 2
12%
D. Neither 1 nor 2
Q.1. With reference to earthquake waves, consider the following statements :
1. P-waves vibrate parallel to the
direction of the wave.
2. The direction of vibrations of S-waves is perpendicular to the wave direction in the vertical plane.
3. P waves create troughs and crests in the material through which they pass.
4. S waves exerts pressure on the material in the direction of the propagation creating density differences in the material leading to stretching and squeezing of the material.
1. P-waves vibrate parallel to the
direction of the wave.
2. The direction of vibrations of S-waves is perpendicular to the wave direction in the vertical plane.
3. P waves create troughs and crests in the material through which they pass.
4. S waves exerts pressure on the material in the direction of the propagation creating density differences in the material leading to stretching and squeezing of the material.
Which of the statements given above is/ are incorrect ?
Anonymous Quiz
25%
A. 1 and 2 only
13%
B. 2 and 3
32%
C. 3 and 4 only
29%
D. 1, 2, 3 and 4
Q.2.Which of the following are the evidences of the phenomenon of continental drift ?
1. The shorelines of Africa and South America facing each other have a remarkable and unmistakable match.
2. The belt of ancient rocks of 2,000 million years from Brazil coast matches with those from western Africa..
3. The occurrence of rich placer deposits of gold in the Ghana coast whereas the gold bearing veins are in Brazil.
4. The observations that Lemurs occur in India, Madagascar and Africa led some to consider a contiguous landmass "Lemuria" linking these three landmasses.
1. The shorelines of Africa and South America facing each other have a remarkable and unmistakable match.
2. The belt of ancient rocks of 2,000 million years from Brazil coast matches with those from western Africa..
3. The occurrence of rich placer deposits of gold in the Ghana coast whereas the gold bearing veins are in Brazil.
4. The observations that Lemurs occur in India, Madagascar and Africa led some to consider a contiguous landmass "Lemuria" linking these three landmasses.
Select the correct answer using the code given below :
Anonymous Quiz
13%
A. 1,2 and 3
18%
B. 1 and 4
13%
C. 1 and 3
55%
D. 1,2,3 and 4
Q.3.Consider the following pairs :
1. Cocos plate : Between South America and Pacific plate
2. Nazca plate : Between Central America and Pacific plate
3. Arabian plate : Mostly the Saudi Arabian landmass
4. Philippine plate : Between the Asiatic and Pacific plate
1. Cocos plate : Between South America and Pacific plate
2. Nazca plate : Between Central America and Pacific plate
3. Arabian plate : Mostly the Saudi Arabian landmass
4. Philippine plate : Between the Asiatic and Pacific plate
How many of the above pairs are correctly matched ?
Anonymous Quiz
6%
A. Only one pair
52%
B. Only two pairs
39%
C. Only three pairs
3%
D. None of the pairs
Want to crack UPSC 2026? This is your Fast Track to Success! 🚀
Tired of scattered resources & endless confusion? The Sleepy Classes IAS UPSC GS Mentorship Course for 2026 is your all-in-one solution!
What you get:
1. Recorded lectures with PDF notes
2. Updated Current Affairs videos
3. Topic-wise quizzes
4. Live weekly sessions—25 MCQs practice + mains answer writing with expert evaluation
Dedicated Guru mentorship for ongoing guidance
💥 Get 10% OFF with code: MAINS26
🔖 Only at ₹20,999/-
Link for trial classes : https://courses.sleepyclasses.com/learn/Fast-Track---GS-Mentorship-Course-for-2026
Tired of scattered resources & endless confusion? The Sleepy Classes IAS UPSC GS Mentorship Course for 2026 is your all-in-one solution!
What you get:
1. Recorded lectures with PDF notes
2. Updated Current Affairs videos
3. Topic-wise quizzes
4. Live weekly sessions—25 MCQs practice + mains answer writing with expert evaluation
Dedicated Guru mentorship for ongoing guidance
💥 Get 10% OFF with code: MAINS26
🔖 Only at ₹20,999/-
Link for trial classes : https://courses.sleepyclasses.com/learn/Fast-Track---GS-Mentorship-Course-for-2026
Q.1. Which one of the following is the type of plate boundary along the San Andreas fault ?
A. Ocean-continent convergence
B. Divergent boundary
C. Transform boundary
D. Continent-continent convergence
A. Ocean-continent convergence
B. Divergent boundary
C. Transform boundary
D. Continent-continent convergence
Q.2.Consider the following statements :
1. It was realised that all along the midoceanic ridges, volcanic eruptions are common and they bring huge amounts of lava to the surface in this area.
2. The rocks equidistant on either side of the crest of mid-oceanic ridges show remarkable similarities in terms of period. of formation, chemical compositions and magnetic properties.
3. The belt of ancient rocks of 2,000 million years from Brazil coast matches with those from western Africa.
4. The ocean crust rocks are much younger than the continental rocks.
1. It was realised that all along the midoceanic ridges, volcanic eruptions are common and they bring huge amounts of lava to the surface in this area.
2. The rocks equidistant on either side of the crest of mid-oceanic ridges show remarkable similarities in terms of period. of formation, chemical compositions and magnetic properties.
3. The belt of ancient rocks of 2,000 million years from Brazil coast matches with those from western Africa.
4. The ocean crust rocks are much younger than the continental rocks.
How many statements given above can be associated with Sea Floor Spreading Theory ?
Anonymous Quiz
3%
A. Only one statement
35%
B. Only two statements
35%
C. Only three statements
27%
D. All four statements
Q.3.Consider the following statements :
1. Water vapour is a variable gas in the atmosphere, which decreases with altitude.
2. In the warm and wet tropics, it may account for four per cent of the air by volume, while in the dry and cold areas of desert and polar regions, it may be less than one per cent of the air.
3. Water vapour increases from the equator towards the poles.
4. Water vapour contributes to the stability and instability in the air.
1. Water vapour is a variable gas in the atmosphere, which decreases with altitude.
2. In the warm and wet tropics, it may account for four per cent of the air by volume, while in the dry and cold areas of desert and polar regions, it may be less than one per cent of the air.
3. Water vapour increases from the equator towards the poles.
4. Water vapour contributes to the stability and instability in the air.
How many statements given above is/are true for Water Vapor in the atmosphere ?
Anonymous Quiz
4%
A. Only one statement
41%
B. Only two statements.
51%
C. Only three statements
4%
D. All four statements
Q.1. Consider the following statements :
1. Dust particles are generally concentrated in the lower layers of the atmosphere; yet, convectional air currents may transport them to great heights.
2. The higher concentration of dust particles is found in subtropical and polar regions due to dry winds in comparison to equatorial and temperate regions.
3. Dust and salt particles act as hydrophobic nuclei around which water vapour condenses to produce clouds.
1. Dust particles are generally concentrated in the lower layers of the atmosphere; yet, convectional air currents may transport them to great heights.
2. The higher concentration of dust particles is found in subtropical and polar regions due to dry winds in comparison to equatorial and temperate regions.
3. Dust and salt particles act as hydrophobic nuclei around which water vapour condenses to produce clouds.
How many of the statements given above is/are correct ?
Anonymous Quiz
10%
A. Only one
54%
B. Only two
36%
C. Only Three
1%
D. None
Q.2.Which of the following represents the correct descending order of the top four most abundant gases in Earth's atmosphere by percentage composition ?
A. Nitrogen > Oxygen Argon > Carbon Dioxide
B. Oxygen Nitrogen Argon > Carbon Dioxide
C. Nitrogen Carbon Dioxide Oxygen > Argon
D. Oxygen Carbon Dioxide > Nitrogen > Argon
A. Nitrogen > Oxygen Argon > Carbon Dioxide
B. Oxygen Nitrogen Argon > Carbon Dioxide
C. Nitrogen Carbon Dioxide Oxygen > Argon
D. Oxygen Carbon Dioxide > Nitrogen > Argon
Q.3.With reference to the layers of the atmosphere, consider the following statements :
1. The thickness of the troposphere is greatest at the equator because heat is transported to great heights by strong convectional currents.
2. The air temperature at the tropopause is about -80°C over the poles and about -45°C over the equator.
3. In the mesosphere, temperature starts decreasing with the increase in altitude and reaches up to -100°C at a height of 80 km.
4. Radio waves transmitted from the Earth are reflected back to the Earth by the ionosphere.
1. The thickness of the troposphere is greatest at the equator because heat is transported to great heights by strong convectional currents.
2. The air temperature at the tropopause is about -80°C over the poles and about -45°C over the equator.
3. In the mesosphere, temperature starts decreasing with the increase in altitude and reaches up to -100°C at a height of 80 km.
4. Radio waves transmitted from the Earth are reflected back to the Earth by the ionosphere.
How many of the above statements are correct ?
Anonymous Quiz
8%
A. Only one
38%
B. Only two
39%
C. Only three
16%
D. All four