Geography · Environmental Studies

Oceanography and Hydrology

1,673 Questions

Find relevant questions on oceanography and hydrology that address aquatic ecosystems and physical geography. The topics include coastal landforms, coral reefs, ocean salinity, and tidal patterns. These concepts frequently appear in civil services and state level administrative examinations.

Coral reef structuresCoastal landformsOcean salinity patternsGlacial retreat impactsMangrove ecosystems

Oceanography and Hydrology Questions

Multiple choice biology living in harmony climate factors abiotic components organisms and environment

Which of these is an example of an abiotic factor?
I.    Crickets
II.   Rainfall
Ill.  Shark

  1. I only

  2. II only

  3. III only

  4. I and III only

  5. I, II and III
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Abiotic factors are the non living factors, substances and conditions of the environment which influence the physiology, survival, function, behaviour and reproduction of organisms. The major abiotic factors are temperature, water, light and soil. 
Hence among all the options given in the question, rainfall is the abiotic factor while crickets and sharks are included under biotic factors as they are living factors.
So, the correct answer is 'II only'.
Multiple choice geography europe - location, political divisions and physical features mediterranean climatic region location, political and physical divisions of europe environmental regions

___________ drains into the Bay of Biscay.

  1. River Garonne

  2. River Loire

  3. Both a and b

  4. River Rhone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

River Garonne and River Loire,

Located in the Celtic Sea, a gulf of the northeast Atlantic Ocean is called the Bay of Biscay. It is located in the northern coast of Spain and the western coast of France and is named after the Spanish province of Biscay. The average depth of the bay is 1745 meters and the maximum depth is 2790 meters and parts of the continental shelf extend into the bay those results into fairly shallow water at places.

Some of the fiercest weather conditions of the Atlantic Ocean can be witnessed in the Biscay Bay. The area is home to large storms during the winter months and there have been countless ships wrecks reported from the area as a result of the gruesome weather. The late spring and the early summer in the area are cool and cloudy and large fog triangles fill the south-western part of the inlet.

The weather in the Bay of Biscay is the most vital thing to be worried and talked about. As winters begin, the weather turns harsh and severe. Depressions are formed and enter the bay from the west. They eventually dry out and are born again in form of thunderstorms. They also bring in constant rain in the region often bringing thunderstorm that look like hurricane and crash at the bay. One such example can be the Klaus Strom.

Multiple choice geography europe - location, political divisions and physical features mediterranean climatic region location, political and physical divisions of europe environmental regions

Fjords are formed by the action of __________.

  1. water

  2. glacier

  3. wind

  4. sea waves
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glacier
A fjord is formed when a glacier retreats, after carving its typical U-shaped valley, and the sea fills the resulting valley floor. This forms a narrow, steep sided inlet (sometimes deeper than 1300 metres) connected to the sea. The terminal moraine pushed down the valley by the glacier is left underwater at the fjord’s entrance, causing the water at the neck of the fjord to be shallower than the main body of the fjord behind it.

Multiple choice geography europe - location, political divisions and physical features mediterranean climatic region location, political and physical divisions of europe environmental regions

Glacier action which led to the formation of long and narrow inlets of the sea, with steep land on three side is called ______________.

  1. estuaries

  2. u-shaped valley

  3. fjords

  4. straits
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fjords,

A true fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock. According to the standard model, glaciers formed in pre-glacial valleys with a gently sloping valley floor. The work of the glacier then left an overdeepened U-shaped valley that ends abruptly at a valley or trough end. Such valleys are fjords when flooded by the ocean. Thresholds above sea level create freshwater lakes. Glacial melting is accompanied by the rebounding of Earth's crust as the ice load and eroded sediment is removed (also called isostasy or glacial rebound). In some cases this rebound is faster than sea level rise. Most fjords are deeper than the adjacent sea; Sognefjord, Norway, reaches as much as 1,300 m (4,265 ft) below sea level. Fjords generally have a sill or shoal (bedrock) at their mouth caused by the previous glacier's reduced erosion rate and terminal moraine. In many cases this sill causes extreme currents and large saltwater rapids (see skookumchuck). Saltstraumen in Norway is often described as the world's strongest tidal current. These characteristics distinguish fjords from rias (e.g. the Bay of Kotor), which are drowned valleys flooded by the rising sea. Drammensfjorden is cut almost in two by the Svelvik "ridge", a sandy moraine that during the ice cover was under sea level but after the post-glacial rebound reaches 60 m (200 ft) above the fjord.

Multiple choice economics how does production take place? natural resources- air, water and land land land,labour, capital and entrepreneur production mechanism

Which of the following is the basis of transport?

  1. Air

  2. Water

  3. Land

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Land is the basic basis of transportation because of its extreme importance. It can provide door to door services; cost of land transportation is reasonable; less chance of the goods to get damaged ,etc

Multiple choice geography irrigation and power generation of electricity exploration and conservation of minerals secondary sector : industry

OTEC refers to ________.

  1. Oceanic mineral resources conservation

  2. Tidal and wave energy conversion

  3. Ocean thermal energy conversion

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters. OTEC plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

The dead aquatic organisms that were buried under the sand and clay of the sea bed, were converted to petroleum owing to:

  1. absence of air

  2. high temperature

  3. high pressure

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The dead aquatic organisms that were buried under the sand and clay of the seabed, were converted to petroleum owing to the absence of air, high temperature, and high pressure.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

All of the water found on earth is called as

  1. Biosphere

  2. Stratosphere

  3. Hydrosphere

  4. Ocean
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The water present on earth in form of lakes, oceans, rivers, etc is called hydrosphere. About 2/3rd (71%) of earth's crust is covered by water. This layer contains water which regulates the atmospheric temperature and ecosystem and also maintains the aquatic life on earth. About 2.5% of hydrosphere constitutes of fresh water. So, the correct option is C.

Multiple choice economics how does production take place? land land,labour, capital and entrepreneur production mechanism

The term "land" refers to _________.

  1. the surface of the earth

  2. the surface of the water

  3. the layer of the air

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Marshall said, "By land is meant not merely land in the strict sense of the world, but whole of the materials and forces which nature gives freely for man's aid in land and water, in air, light and heat"

Multiple choice examples of bryophytes plant kingdom biology

Which of the following is least likely to occur along the sea coast?

  1. Green algae

  2. Brown algae

  3. Red algae

  4. Mosses
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mosses occupy a wide range of habitats. Mosses are typically found in moist environments although most species can withstand prolonged periods of desiccation. In terrestrial ecosystems, Mosses are important in preventing soil erosion. Numerous species of Moss are found in fresh water but there are no salt water species.

Multiple choice

Waves crashing into the shore shows which type of energy transformation?

  1. kinetic to chemical

  2. chemical to kinetic

  3. thermal to kinetic

  4. kinetic to sound
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

As waves crash, the kinetic energy of the moving water is dissipated into the environment, often producing sound energy. The other options involve forms of energy not primarily associated with the mechanical impact of waves.

Multiple choice

It is a piece of land surrounded by water.

  1. Islands

  2. sea

  3. land

  4. well
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An island is a piece of sub-continental land that is surrounded by water. Seas are large bodies of saltwater, and wells are man-made holes for water.