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Indian Geography Test 6
Read Instructions for the test.
Negative marks are -0.33 per wrong answer
Right answer is 1 mark
No time limit but finish in 30 mins
Solution can be found at below chapters:
Test series is based on following chapters.
Indian Geography Chapter 8: MOTION OF OCEANIC WATER
Indian Geography Chapter 9: CLIMATOLOGY
Q1: Waves are caused due to
gravity pushes the crest downwards and falling water pulls the troughs upwards
Actual motion of water below the surface is circular.
Q2: Ocean Currents are created due to
Q3: Properties of ocean currents
Most currents follow the winds.
the earth’s rotation deflects the ocean currents to east in north and south.
water at equator is heated and rises. The water at poles cools and sinks, this water flows towards the equator at subsurface level to maintain the loss.
Q4: Motion of ocean water is
insolation increases salinity and the high saline water sinks and less saline water rises to the surface.
The equator water is less saline [heavy rainfall] and moves to polar high saline water [icebergs].
Q5: The best fishing grounds in the world are places where
hot and cold current meet
Q6: Ocean currents have the following aspects
The cold currents are also responsible for desiccating effect on the deserts
The winter current in Arabian Sea caused movement of water towards Arabia and in summer caused movement of water towards India, Thus facilitating trade.
When wind blows in the north direction it creates a flow of water in the western direction.
This west flowing water then leads to the divergence at the coast and draws water from below the surface to the top.
The cool and nutrient rich water from below comes to the surface. This causes reproduction of phytoplankton and zooplankton.
Q8: When the wind moves southward it causes flow of water towards the coast and this creates
Q9: Due to the gravitational pull of the sun and the moon causes
Q10: The tides depend on
depth of ocean, configuration of coastline
openness and closeness of sea.
Q11: Which is true regarding tides
perigee tides [moon is closer]
higher than apogee tides
both a and b
Q12: When sun, moon and earth are in a line either during full moon and new moon we get
Q13: when sun, moon and earth are at right angles and this is
Q14: Which is true ?
In spring tide low tide is lower than usual
in neap tide the low tide is higher than usual.
Q15: Which is true ?
Kandla and diamond harbor are tidal ports.
Vishakapatnam is deepest landlocked port
Q16: oldest artificial port
Q17: oldest port
Q18: mouth of a river is submerged or low lying under sea water
Q19: Temperature of ocean water
The process of insolation is responsible for ocean temperature
the average temperature of surface of ocean is 25°.
The average temperature of ocean is 3-5°
Q20: Which is true about temperature of the ocean
highest at the tropics not the equator
It decreases towards the poles
Q21: Which is true ?
Due to large land mass in the northern hemisphere the temperature of water is higher than in south.
diurnal temperature range of tropics is higher than equator
equator has high cloud cover and rainfall and so ocean temperature is lower than in tropics
Q22: Which is true ?
The enclosed seas of tropics are warmer than open oceans
The enclosed seas of temperate are cooler than Open Ocean.
Bigger the size of the ocean better mixing of water and so less annual range of temperature.
Q23: Salinity of oceans
Sodium chloride is the highest percentage present in ocean
Both sodium and chlorine have high residual time and hence remain in highest proportion.
The proportion of salt remains same in all parts of the ocean.
Q24: Variations in salinity
Salinity increases with high evaporation rate, windy conditions, no fresh water source and down welling.
Salinity decreases due to high rainfall, low evaporation rate, upwelling and melting of glaciers.
Q25: What deflects the ocean currents to east in north and south.
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