Q.1. Earthquake waves get recorded in seismographs located at far off locations. However, there exist some specific areas where the waves are not reported called the shadow zone.
Consider the following statements in context with the same:
1. The seismographs located beyond 145° from epicentre, record the arrival of S- waves, but not that of P-waves.
2. The entire zone beyond 105° does not receive P-waves.
3. The shadow zone of S-waves is not only larger in extent but it is also a little over 40 per cent of the earth surface.
Consider the following statements in context with the same:
1. The seismographs located beyond 145° from epicentre, record the arrival of S- waves, but not that of P-waves.
2. The entire zone beyond 105° does not receive P-waves.
3. The shadow zone of S-waves is not only larger in extent but it is also a little over 40 per cent of the earth surface.
How many statements given above can be associated with Sea Floor Spreading Theory ?
Anonymous Quiz
32%
A. Only one statement
48%
B. Only two statements
16%
C. Only three statements
4%
D. All four statements
Q.2. Which type of volcanic eruptions have caused Deccan Trap formations ?
A. Shield
B. Flood
C. Composite
D. Caldera
A. Shield
B. Flood
C. Composite
D. Caldera
Q.3.Consider the following statements :
1. P-waves (Primary waves) travel through gaseous, liquid and solid materials. whereas S-waves (Secondary waves) can travel only through solid materials.
2. P-waves (Primary waves)move faster and are the first to arrive at the surface whereas the Surface waves are the last to report on seismograph.
1. P-waves (Primary waves) travel through gaseous, liquid and solid materials. whereas S-waves (Secondary waves) can travel only through solid materials.
2. P-waves (Primary waves)move faster and are the first to arrive at the surface whereas the Surface waves are the last to report on seismograph.
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
26%
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
14%
A. 1,2 and 3
19%
B. 1 and 4
14%
C. 1 and 3
53%
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
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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
33%
B. Only two statements
35%
C. Only three statements
29%
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
44%
B. Only two statements.
49%
C. Only three statements
3%
D. All four statements