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The current of Indian Ocean is- a)the west wind drift.
- b)Labrador.
- c)California.
- d)Kuroshio.
Correct answer is option 'A'. Can you explain this answer?
The current of Indian Ocean is
a)
the west wind drift.
b)
Labrador.
c)
California.
d)
Kuroshio.
|
Kavya Khanna answered |
The current of Indian Ocean is the west wind drift.Its a cold current,which bring cold water into warm water areas.
The Thermodynamics of the ocean are:- a)Currents
- b)Waves
- c)Tides
- d)Salinity
Correct answer is option 'D'. Can you explain this answer?
The Thermodynamics of the ocean are:
a)
Currents
b)
Waves
c)
Tides
d)
Salinity
|
Rohit Datta answered |
Thermodynamics of the Ocean: Salinity
Salinity is a critical factor in the thermodynamics of the ocean as it affects the density, temperature, and movement of seawater. Salinity refers to the amount of salt or dissolved minerals in seawater, which is mainly composed of sodium chloride (NaCl) but also contains other elements like magnesium, calcium, and potassium.
How Salinity Affects Density
The density of seawater increases with higher salinity and decreases with lower salinity. This is because saltwater is denser than freshwater due to the added weight of dissolved salts. The density of seawater also increases with decreasing temperature, which is why colder water sinks below warmer water.
How Salinity Affects Temperature
Salinity also affects the temperature of seawater by influencing its heat capacity and thermal conductivity. Saltwater has a higher heat capacity than freshwater, which means it can absorb more heat energy without a significant increase in temperature. This makes it more resistant to temperature changes and helps to regulate the overall temperature of the ocean.
How Salinity Affects Movement
The movement of seawater is also affected by salinity due to its impact on density and temperature. Salinity differences between adjacent bodies of water create density gradients that drive currents and ocean circulation. These density gradients are particularly pronounced in areas where freshwater enters the ocean, such as at river mouths or near melting ice sheets.
Conclusion
In conclusion, salinity is a critical factor in the thermodynamics of the ocean, affecting its density, temperature, and movement. Understanding these complex interactions is crucial for predicting and managing the impacts of climate change on the ocean and its ecosystems.
Salinity is a critical factor in the thermodynamics of the ocean as it affects the density, temperature, and movement of seawater. Salinity refers to the amount of salt or dissolved minerals in seawater, which is mainly composed of sodium chloride (NaCl) but also contains other elements like magnesium, calcium, and potassium.
How Salinity Affects Density
The density of seawater increases with higher salinity and decreases with lower salinity. This is because saltwater is denser than freshwater due to the added weight of dissolved salts. The density of seawater also increases with decreasing temperature, which is why colder water sinks below warmer water.
How Salinity Affects Temperature
Salinity also affects the temperature of seawater by influencing its heat capacity and thermal conductivity. Saltwater has a higher heat capacity than freshwater, which means it can absorb more heat energy without a significant increase in temperature. This makes it more resistant to temperature changes and helps to regulate the overall temperature of the ocean.
How Salinity Affects Movement
The movement of seawater is also affected by salinity due to its impact on density and temperature. Salinity differences between adjacent bodies of water create density gradients that drive currents and ocean circulation. These density gradients are particularly pronounced in areas where freshwater enters the ocean, such as at river mouths or near melting ice sheets.
Conclusion
In conclusion, salinity is a critical factor in the thermodynamics of the ocean, affecting its density, temperature, and movement. Understanding these complex interactions is crucial for predicting and managing the impacts of climate change on the ocean and its ecosystems.
The current of Atlantic ocean is- a)west wind drift.
- b)Gulf stream.
- c)Equatorial counter current.
- d)Alaska current.
Correct answer is option 'B'. Can you explain this answer?
The current of Atlantic ocean is
a)
west wind drift.
b)
Gulf stream.
c)
Equatorial counter current.
d)
Alaska current.
|
Priyanka Chavan answered |
The current of Atlantic ocean is Gulf current.It is warm current which bring warm water into cold water areas.
______causes waves to travel in the ocean and the energy is released on shorelines.- a)Wind
- b)Land
- c)Water
- d)Soil
Correct answer is option 'A'. Can you explain this answer?
______causes waves to travel in the ocean and the energy is released on shorelines.
a)
Wind
b)
Land
c)
Water
d)
Soil
|
Mainak Goyal answered |
Water particles only travel in a small circle as a wave passes. Wind causes waves to travel in the ocean and the energy is released on shorelines.
The most common tidal pattern, featuring two high tides and two low tides each day is called- a)Neap tide.
- b)Mixed tide.
- c)Semi-diurnal tide
- d)Diurnal tide
Correct answer is option 'C'. Can you explain this answer?
The most common tidal pattern, featuring two high tides and two low tides each day is called
a)
Neap tide.
b)
Mixed tide.
c)
Semi-diurnal tide
d)
Diurnal tide
|
Upasana Chopra answered |
The most common tidal pattern, featuring two high tides and two low tides each day is called Semi-diurnal tide.
The factor that affects the origin and movement of currents is- a)river flow.
- b)salinity and density of water.
- c)tides.
- d)prevailing winds.
Correct answer is option 'B'. Can you explain this answer?
The factor that affects the origin and movement of currents is
a)
river flow.
b)
salinity and density of water.
c)
tides.
d)
prevailing winds.
|
Rajat Iyer answered |
Salinity and density of water, direction and shape of the coast and gravitational force are the factors that decide the origin and movement of currents.
Wave amplitude is:- a)The height of the wave
- b)The breadth of the wave
- c)Half of the wave height
- d)It is the time interval between two successive waves
Correct answer is option 'C'. Can you explain this answer?
Wave amplitude is:
a)
The height of the wave
b)
The breadth of the wave
c)
Half of the wave height
d)
It is the time interval between two successive waves
|
Bhavana Yadav answered |
A. The height of the wave
Wave amplitude refers to the maximum displacement of a particle on a wave from its equilibrium position. It is commonly represented by the height of the wave. It can be measured from either the equilibrium position to the crest (highest point) or from the equilibrium position to the trough (lowest point) of the wave.
B. The breadth of the wave
The breadth of a wave is not related to wave amplitude. The breadth of a wave refers to its width or the distance between two consecutive crests or troughs. It is a measure of the spatial extent of the wave, while amplitude is a measure of the magnitude of the wave.
C. Half of the wave height
Wave amplitude is not half of the wave height. The wave height refers to the vertical distance between the trough and the crest of the wave, while amplitude refers to the maximum displacement from the equilibrium position. The amplitude can be equal to, smaller than, or greater than half of the wave height, depending on the characteristics of the wave.
D. It is the time interval between two successive waves
Wave amplitude is not related to the time interval between two successive waves. The time interval between two successive waves is called the period or wavelength of the wave. Amplitude and wavelength are independent properties of a wave.
In conclusion, the correct answer is option A) The height of the wave. Wave amplitude is the maximum displacement of a particle on a wave from its equilibrium position, commonly represented by the height of the wave. It is not related to the breadth of the wave, half of the wave height, or the time interval between two successive waves.
Wave amplitude refers to the maximum displacement of a particle on a wave from its equilibrium position. It is commonly represented by the height of the wave. It can be measured from either the equilibrium position to the crest (highest point) or from the equilibrium position to the trough (lowest point) of the wave.
B. The breadth of the wave
The breadth of a wave is not related to wave amplitude. The breadth of a wave refers to its width or the distance between two consecutive crests or troughs. It is a measure of the spatial extent of the wave, while amplitude is a measure of the magnitude of the wave.
C. Half of the wave height
Wave amplitude is not half of the wave height. The wave height refers to the vertical distance between the trough and the crest of the wave, while amplitude refers to the maximum displacement from the equilibrium position. The amplitude can be equal to, smaller than, or greater than half of the wave height, depending on the characteristics of the wave.
D. It is the time interval between two successive waves
Wave amplitude is not related to the time interval between two successive waves. The time interval between two successive waves is called the period or wavelength of the wave. Amplitude and wavelength are independent properties of a wave.
In conclusion, the correct answer is option A) The height of the wave. Wave amplitude is the maximum displacement of a particle on a wave from its equilibrium position, commonly represented by the height of the wave. It is not related to the breadth of the wave, half of the wave height, or the time interval between two successive waves.
Great barrier reef is in- a)Antarctic ocean.
- b)Australia.
- c)Austria.
- d)China.
Correct answer is option 'B'. Can you explain this answer?
Great barrier reef is in
a)
Antarctic ocean.
b)
Australia.
c)
Austria.
d)
China.
|
Nilesh Chakraborty answered |
The Great Barrier Reef is a site of remarkable variety and beauty on the north-east coast of Australia. It contains the world’s largest collection of coral reefs, with 400 types of coral, 1,500 species of fish and 4,000 types of molluscs. It also holds great scientific interest as the habitat of species such as the dugong (‘sea cow’) and the large green turtle, which are threatened with extinction.
Wave speed is the rate at which the wave moves through the water, and is measured in- a)Knots.
- b)Miles.
- c)Kilometer.
- d)Kilogram.
Correct answer is option 'A'. Can you explain this answer?
Wave speed is the rate at which the wave moves through the water, and is measured in
a)
Knots.
b)
Miles.
c)
Kilometer.
d)
Kilogram.
|
Maitri Menon answered |
A is the correct option.The term “knot”, in reference to currents, is defined as one nautical mile per hour and is used to measure speed.Surfers usually use knots for wave speeds (or sometimes miles per hour.) To convert to knots or nautical miles per hour simply multiply by 2. So a 10 second period wave will have a deep water speed of 30 knots.
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