Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere

Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
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 measure the depth of the sea
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Echo sounding is the technique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere

Description : Echo sounding is the technique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere

Last Answer : (1) measure the depth of the sea Explanation: Echo sounding is the technique of using sound pulses to find the depth of water. The interval from the emission of a pulse to reception ... information is then typically used for navigation purposes or in order to obtain depths for charting purposes.

“Tsunami” is the name given to which of the following? (1) Earthquake (2) Cyclone (3) Tidal Waves (4) Undersea Waves

Description : “Tsunami” is the name given to which of the following? (1) Earthquake (2) Cyclone (3) Tidal Waves (4) Undersea Waves

Last Answer : Undersea Waves

What is the epicentre of an Earthquake? (1) The point at which earthquake originates (2) The point which is prone to volcanoes (3) The point from which the intensity of seismic waves declines (4) The point on the earth’s surface vertically above the seismic focus

Description : What is the epicentre of an Earthquake? (1) The point at which earthquake originates (2) The point which is prone to volcanoes (3) The point from which the intensity of seismic waves declines (4) The point on the earth’s surface vertically above the seismic focus

Last Answer : The point on the earth’s surface vertically above the seismic focus

The main cause of Tsunami is : (1) Volcanoes (2) Cyclones (3) Earthquake on sea floor (4) Moon’s attraction

Description : The main cause of Tsunami is : (1) Volcanoes (2) Cyclones (3) Earthquake on sea floor (4) Moon’s attraction

Last Answer : Earthquake on sea floor

The layer of the atmosphere in which Radio Waves are reflected back is called ; (1) Ionosphere (2) Troposphere (3) Stratosphere(4) Exosphere

Description : The layer of the atmosphere in which Radio Waves are reflected back is called ; (1) Ionosphere (2) Troposphere (3) Stratosphere(4) Exosphere

Last Answer : Ionosphere

Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate (1) The distance between the sun and the earth (2) The depth of the ocean (3) The radius of the earth (4) The radius of the sun

Description : Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate (1) The distance between the sun and the earth (2) The depth of the ocean (3) The radius of the earth (4) The radius of the sun

Last Answer :  The radius of the earth

In sea, plants are restricted up to the depth of (1) 20 m (2) 200 m (3) 1000 m (4) 2000 m

Description : In sea, plants are restricted up to the depth of (1) 20 m (2) 200 m (3) 1000 m (4) 2000 m 

Last Answer : 200 m

Seismic sea waves which approach the coasts at greater force are known as (1) Tides (2) Tsunami (3) Current (4) Cyclone

Description : Seismic sea waves which approach the coasts at greater force are known as (1) Tides (2) Tsunami (3) Current (4) Cyclone

Last Answer : Tsunami

Density of the earth’s atmosphere is highest in the (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Ionosphere

Description : Density of the earth’s atmosphere is highest in the (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Ionosphere

Last Answer : Troposphere

A wide inlet of the sea usually concave in shape, is termed as a: (1) Strait (2) Sound (3) Bay (4) Fjord

Description : A wide inlet of the sea usually concave in shape, is termed as a: (1) Strait (2) Sound (3) Bay (4) Fjord

Last Answer : Bay

Pick up the correct statement from the following: (A) For nautical purposes, low water level is generally referred to by the navigators (B) The depth of the bed of the sea from the surface of water is called sounding (C) The contour lines on the bed of a water body are called fathoms (D) All the abov

Description : Pick up the correct statement from the following: (A) For nautical purposes, low water level is generally referred to by the navigators (B) The depth of the bed of the sea from the surface of water is ... (C) The contour lines on the bed of a water body are called fathoms (D) All the above

Last Answer : (D) All the above

The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere

Description : The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere

Last Answer : Biosphere

Which from the following can cause a tsunami ? (1) Volcano (2) Avalanche (3) Tornado (4) Earthquake

Description : Which from the following can cause a tsunami ? (1) Volcano (2) Avalanche (3) Tornado (4) Earthquake

Last Answer : Earthquake

The minimum short-term natural hazard is (1) blizzard (2) earthquake (3) volcanic eruption (4) bolt of lightning

Description : The minimum short-term natural hazard is (1) blizzard (2) earthquake (3) volcanic eruption (4) bolt of lightning

Last Answer : bolt of lightning

An earthquake is also known as (1) Teacher (2) Tremor (3) Temper (4) None of these

Description : An earthquake is also known as (1) Teacher (2) Tremor (3) Temper (4) None of these

Last Answer : Tremor

The rapid sliding of large masses of bed rocks is called : (1) Landslide (2) Earthquake (3) Weathering (4) Mass wasting

Description : The rapid sliding of large masses of bed rocks is called : (1) Landslide (2) Earthquake (3) Weathering (4) Mass wasting

Last Answer : Landslide

Which one of the following is an unpredictable natural disaster ? (1) Earthquake (2) Cyclone (3) Tornado (4) Hurricane

Description : Which one of the following is an unpredictable natural disaster ? (1) Earthquake (2) Cyclone (3) Tornado (4) Hurricane

Last Answer : Earthquake

What is the scale used for measuring the intensity of the earthquake? (1) Richter scale (2) Metric scale (3) Centigrade scale (4) Newton’s scale

Description : What is the scale used for measuring the intensity of the earthquake? (1) Richter scale (2) Metric scale (3) Centigrade scale (4) Newton’s scale

Last Answer : Richter scale

Earthquake is caused by (1) disturbance of earth surface (2) adjustment of layers of earth’s crust (3) breakage of rock system (4) upliftment of rocks

Description : Earthquake is caused by (1) disturbance of earth surface (2) adjustment of layers of earth’s crust (3) breakage of rock system (4) upliftment of rocks 

Last Answer : disturbance of earth surface

The term ‘epicentre’ is associated with— (1) earthquake (2) folding (3) faulting (4) earth’s interior

Description : The term ‘epicentre’ is associated with— (1) earthquake (2) folding (3) faulting (4) earth’s interior

Last Answer : earthquake

The instrument which uses sound waves to measure the depth of oceans is – (1) Radar (2) Sonar (3) Altimeter (4) Venturimeter

Description : The instrument which uses sound waves to measure the depth of oceans is – (1) Radar (2) Sonar (3) Altimeter (4) Venturimeter

Last Answer : (2) Sonar Explanation: The instrument which uses sound waves to measure the depth of oceans is sonar. Sound waves can travel much faster from one point to another. Sound waves are far more ... Sonar may also be used in air for robot navigation, and SODAR is used for atmospheric investigations.

The instrument which uses sound waves to measure the depth of oceans is (1) Radar (2) Sonar (3) Altimeter (4) Venturimeter

Description : The instrument which uses sound waves to measure the depth of oceans is (1) Radar (2) Sonar (3) Altimeter (4) Venturimeter

Last Answer : Sonar

Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish

Description : Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish 

Last Answer : rivers wash away salts from earth and pour them into the sea

Waves approaching the shore is known as (1) Swash (2) Tsunami (3) Currents (4) Tide

Description : Waves approaching the shore is known as (1) Swash (2) Tsunami (3) Currents (4) Tide

Last Answer : Tsunami

The word ‘dendritic’ is associated with— (1) wind (2) waves (3) rivers (4) glaciers

Description : The word ‘dendritic’ is associated with— (1) wind (2) waves (3) rivers (4) glaciers

Last Answer : rivers

Humus is a type of (1) fossil seen on the rocks (2) decaying organic matters in soil (3) fertilizers applied in soil (4) special growth found in plants

Description : Humus is a type of (1) fossil seen on the rocks (2) decaying organic matters in soil (3) fertilizers applied in soil (4) special growth found in plants 

Last Answer : decaying organic matters in soil

Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Description : Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms

Last Answer : the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms

The main cause of global climatic change is (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover

Description : The main cause of global climatic change is (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover

Last Answer : increase in the content of carbon dioxide in the atmosphere

Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays

Description : Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays 

Last Answer : oxygen and ultraviolet rays

Which layer of the earth’s atmosphere contains the ozone layer ? (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Description : Which layer of the earth’s atmosphere contains the ozone layer ? (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Last Answer : Stratosphere

A level of atmosphere which is composed partly of electrons and positive ions is called (1) Troposphere (2) Ionosphere (3) Stratosphere (4) Mesosphere

Description : A level of atmosphere which is composed partly of electrons and positive ions is called (1) Troposphere (2) Ionosphere (3) Stratosphere (4) Mesosphere

Last Answer : Ionosphere

In which of the following layer of atmosphere the absorption and scattering of the solar ultraviolet radiation takes place? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere

Description : In which of the following layer of atmosphere the absorption and scattering of the solar ultraviolet radiation takes place? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere

Last Answer : Stratosphere

Which of the following is the uppermost layer of the atmosphere? (1) Stratosphere (2) Mesosphere (3) Ionosphere (4) Exosphere

Description : Which of the following is the uppermost layer of the atmosphere? (1) Stratosphere (2) Mesosphere (3) Ionosphere (4) Exosphere

Last Answer : Exosphere

Most of the ozone in the earth’s atmosphere is found in the : (1) Troposphere (2) Stratosphere (3) Mesophere (4) Thermosphere

Description : Most of the ozone in the earth’s atmosphere is found in the : (1) Troposphere (2) Stratosphere (3) Mesophere (4) Thermosphere

Last Answer : Stratosphere

Which is the warmest layer of the atmosphere? (1) Thermosphere (2) Troposphere (3) Stratosphere (4) Mesosphere

Description : Which is the warmest layer of the atmosphere? (1) Thermosphere (2) Troposphere (3) Stratosphere (4) Mesosphere

Last Answer : Thermosphere

The layer of atmosphere close to the earth’s surface is called (1) Exosphere (2) Troposphere (3) Stratosphere (4) Ionosphere

Description : The layer of atmosphere close to the earth’s surface is called (1) Exosphere (2) Troposphere (3) Stratosphere (4) Ionosphere

Last Answer : Troposphere

Our atmosphere is divided into layers. (1) Two (2) Three (3) Four (4) Five

Description : Our atmosphere is divided into layers. (1) Two (2) Three (3) Four (4) Five

Last Answer : Five

The zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as : (1) Mesosphere (2) Thermosphere (3) Troposphere (4) Stratosphere

Description : The zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as : (1) Mesosphere (2) Thermosphere (3) Troposphere (4) Stratosphere

Last Answer : Troposphere

The lowest layer of the atmosphere is : (1) Stratosphere (2) Thermosphere (3) Troposphere (4) Mesosphere

Description : The lowest layer of the atmosphere is : (1) Stratosphere (2) Thermosphere (3) Troposphere (4) Mesosphere

Last Answer : Troposphere

Troposphere is the hottest part of the atmosphere because (1) it is closest to the Sun (2) there are charged particles in it (3) it is heated by the Earth’s surface (4) heat is generated in it

Description : Troposphere is the hottest part of the atmosphere because (1) it is closest to the Sun (2) there are charged particles in it (3) it is heated by the Earth’s surface (4) heat is generated in it

Last Answer : it is heated by the Earth’s surface

Which is the lowest layer of the atmosphere? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere

Description : Which is the lowest layer of the atmosphere? (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere

Last Answer : Troposphere

The lower layer of atmosphere is called (1) exosphere (2) troposphere (3) ionosphere (4) mesosphere

Description : The lower layer of atmosphere is called (1) exosphere (2) troposphere (3) ionosphere (4) mesosphere

Last Answer : troposphere

In atmosphere the lowermost layer is (1) troposphere (2) exosphere (3) ionosphere (4) strato sphere

Description : In atmosphere the lowermost layer is (1) troposphere (2) exosphere (3) ionosphere (4) strato sphere

Last Answer : troposphere

If there is no carbon dioxide in the earth’s atmosphere, the temperature of earth’s surface would be (1) dependent on the amount of oxygen in the atmosphere (2) higher than the present (3) less than the present (4) the same

Description : If there is no carbon dioxide in the earth’s atmosphere, the temperature of earth’s surface would be (1) dependent on the amount of oxygen in the atmosphere (2) higher than the present (3) less than the present (4) the same 

Last Answer : less than the present

Daily weather changes in the atmosphere are associated with (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Description : Daily weather changes in the atmosphere are associated with (1) Troposphere (2) Mesosphere (3) Ionosphere (4) Stratosphere

Last Answer : Troposphere

Ozone-hole in the atmosphere is largely caused by the presence of (1) Oxygen (2) Hydrogen (3) Chloro-floro-carbon (4) Radio-active waste

Description : Ozone-hole in the atmosphere is largely caused by the presence of (1) Oxygen (2) Hydrogen (3) Chloro-floro-carbon (4) Radio-active waste

Last Answer : Chloro-floro-carbon

Why the Earth is having its own atmosphere ? (1) Winds (2) Clouds (3) Gravity (4) Rotation of the Earth

Description : Why the Earth is having its own atmosphere ? (1) Winds (2) Clouds (3) Gravity (4) Rotation of the Earth

Last Answer : Gravity

Match List I (Layers of Atmosphere) and List II (Characteristics) and select the correct answer using the code given below. L ist I L i st I I (L ayer of (Char acter ist ics) At mospher e) A. Ionosphere I. Contains Ozone B. Stratosphere II. Reflects radio Waves C. Exosphere III. Fall in Temperature D. Troposphere IV. Extremely low air density (1) A-II, B-III, C-IV, D-I (2) A-II, B-I, C-IV, D-III (3) A-II, B-III, C-I, D-IV (4) A-III, B-I, C-IV, D-II

Description : Match List I (Layers of Atmosphere) and List II (Characteristics) and select the correct answer using the code given below. L ist I L i st I I (L ayer of (Char acter ist ics) At mospher e) A. Ionosphere I. Contains Ozone B. ... D-III (3) A-II, B-III, C-I, D-IV (4) A-III, B-I, C-IV, D-II

Last Answer : 2) A-II, B-I, C-IV, D-III

What does it mean when sound waves have a large amplitude?

Description : What does it mean when sound waves have a large amplitude?

Last Answer : Feel Free to Answer

If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Description : If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Last Answer : ANSWER: Z -- AMPLITUDE