IESO & NTSE Stage II (Social-Science) Sample Questions - XI

Q.1. What is the epicenter of an earthquake?
A) place of origin of the earthquake inside the earth
B) a point on the fault on which the earthquake occurs
C) a point on the surface of the earth
D) place at which the earthquake is recorded

Q.2. Planet Venus cannot be seen at mid-night in Bangalore’s sky because
A) Venus is very faint when it is away from the Sun.
B) Venus is an inner planet of the solar system
C) Venus is in ‘new moon’ phase at midnight
D) Venus is hidden behind the moon late at night.

Q.3. When the ocean water is green, it contains a large amount of ___________.
A) Suspended matter
B) Phytoplankton
C) Zooplankton
D) Bacteria

Q.4. Which of the following DOES NOT form a part of the hydrological cycle?
A) Evaporation
B) Precipitation
C) Mixing
D) River runoff

Q.5. Sound speed in the oceans does not depend on ___________.
A) Temperature
B) Salinity
C) Pressure
D) Suspended sediment

Q.6. With increasing ocean water depth, light intensity ___________.
A) Diminishes exponentially
B) Diminishes linearly
C) Diminishes quadratically
D) Remains constant

Q.7. Which of the following is INCORRECT about tsunami?
A) Occurs only in the ocean
B) Very long wave length
C) Very high amplitude in the open ocean
D) Is propagated very fast

Q.8. Which of the following processes will NOT change the salinity of ocean water?
A) Sensible heat loss;
B) Wind-mixing;
C) Evaporation;
D) Precipitation

Q.9. When rain adds fresh water to the ocean, the surface density
A) Increases;
B) Decreases;
C) Remains constant;
D) Initially increases but ultimately decreases

Q.10. Which of the following equipment can be used to determine the depth of the ocean?
A) Radar;
B) Sonar;
C) Magnetometer;
D) Echosounder



ANSWERS - Q.1. (C),Q.2. (B),Q.3. (B),Q.4. (C),Q.5. (D),
Q.6. (A),Q.7. (C),Q.8. (A),Q.9. (B),Q.10.(D).