______ a mountain with pointed summits, rising from the seafloor that does not reach the surface of the ocean
1.Halcoline
2.Seamount
3.Oceanic Shelf
4.None of the above
________ is the extended margin of each continent occupied by relatively shallow seas and gulfs.
1.Oceanic Shelf
2.Continental shelf
3.Salocline
4. Hydra Shelf
______causes waves to travel in the ocean and the energy is released on shorelines.
1.Wind
2.Land
3.Water
4.Soil
A freshwater ecosystem is
1.Oceans
2.Estuaries
3.Coral reefs
4.Marshes
A major portion of sea level is found at:
1.10-12 kms below sea level
2. 6-9 kms below sea level
3.3-6 kms below sea level
4. 1-2 kms below sea level
A mid-ocean ridge is an underwater mountain system formed by
1.plate tectonics
2.earthquake
3. ocean currents
4.submarine landslides
Abiotic factors include
1.Producers
2.Consumers
3.Decomposers
4.Sunlight
Along the coasts, salinity is:
1.Lowered
2.Increased
3.Stable
4.Unaffected
Freshwater ecosystem includes
1. Oceans
2.Coastal estuaries
3.Coral reefs
4.Streams
Huge masses of floating ice are known as:
1.Current
2.Ebb
3.Icebergs
4.Flood
Mineral salts come directly from
1.Earth crust
2.Water cycle
3.Atmosphere
4.Forest biome
Salinity refers to the total amount of
1.sediments in the water
2. impurities present in the water
3.the salt present in the water
4.heat present in the water
Seaward movement of water is known as:
1.Undertow
2.Ebb
3.Current
4.Flood
Temperate Steppe is a subtype of which biome?
1.Forest
2.Desert
3.Grassland
4.Aquatic
The boundaries of different biomes on land are determined mainly by
1. Climate
2.Temperature
3.Human activities
4.Humidity
The continental slope connects the continental shelf and _______
1.the continental shelf
2.the halocline
3.the ocean basins
4.None of the above
The Coral reefs are a major characteristic of:
1.the Indian Ocean
2.the Pacific Ocean
3.the Atlantic Ocean
4. the Mediterranean Sea
The current of the Atlantic ocean is
1.west wind drift
2.Gulf stream
3.Equatorial counter current
4.Alaska current
The current of the Indian Ocean is
1.The west wind drift (b) (c) (d)
2.Labrador
3.California
4.Kuroshio
The earliest man on the earth is known as:
1.Homoerectus
2.Homosapien
3.Homophobic
4.None of the above
The factor that affects the origin and movement of currents is
1.river flow
2.salinity and density of water
3.tides
4.prevailing winds
The geographers have divided the oceanic part of the earth into ______ oceans.
1.2
2.3
3.4
4.5
The most common tidal pattern, featuring two high tides and two low tides each day is called
1. Neap tide
2. Mixed tide
3.semi-diurnal tide
4.Diurnal tide
The shelf typically ends at a very steep slope, called ________
1.Halcoline
2.Seamount
3.Oceanic Shelf
4.Shelf Break
The Thermodynamics of the ocean are:
1. Currents
2.Waves
3.Tides
4.Salinity
The time between the high tide and low tide, when the water level is falling, is called:
1. drift
2.nab
3.ebb
4.current
The time between the low tide and high tide, when the tide is rising, is called:
1.drift
2.flood
3.ebb
4.current
The type of soil the desert biome has is
1.Porous with thin layers of humus
2. Rich in nutrients with little organic matter
3.Acidic, poor in nutrients
4.Fertile alluvial
Wave amplitude is:
1. The height of the wave
2.The breadth of the wave
3.Half of the wave height
4.It is the time interval between two successive waves
Wave speed is the rate at which the wave moves through the water and is measured in
1.Knots
2.Miles
3.Kilometer
4.Kilogram
When various plants and animal species have got adapted through evolution is called:
1.Ecological adaptation
2. Hydrological adaptation
3.Homological adaptation
4.None of the above
Which includes all the living components of the earth.
1.Hydrosphere
2.Atmosphere
3.Biosphere
4.Lithosphere
Which is a plant and animal community that covers a large geographical area?
1.Biosphere
2.Biome
3.Marshes
4.Prairies
Which of the following organism have a parasitic mode of nutrition?
1.Penicillium
2.Plasmodium
3.Paramecium
4.Parrot
Which one of the following is not a minor relief feature in the oceans:
1.Seamount
2.Atoll
3.Oceanic Deep
4.Guyot
Which one of the following is the smallest ocean:
1.the Indian Ocean
2.the Arctic Ocean
3.the Atlantic Ocean
4.the Pacific Ocean