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
30%
A. Only one statement
50%
B. Only two statements
15%
C. Only three statements
5%
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
12%
A. 1 only
19%
B. 2 only
58%
C. Both 1 and 2
11%
D. Neither 1 nor 2