Geography · Environmental Studies

Oceanography and Hydrology

1,743 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 evs water in our life where do we get water from? why conserve water uses of water

Percentage of fresh water in hydrosphere is

  1. Less than 10%

  2. Less than 25%

  3. Less than 3%

  4. Less than 17%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrosphere includes all water on the earth's surface, such as lakes, rivers, seas, oceans etc. The biggest reservoir of fresh water in hydrosphere are glaciers and polar ice that contain just over 2% of the available water and is fresh water. Thus the correct answer is option C.

Multiple choice geography earth as a planet spheres of earth earth and structure introduction to the spheres of the earth

The continents are separated by large stretches of water called ______.

  1. rivers

  2. lakes

  3. lagoons

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

The continents are separated by large stretches of water called oceans. Oceans are a major part of the hydrosphere. They are all interconnected. The ocean waters are always moving. The three chief movements of ocean waters are the waves, the tides, and the ocean currents. The five major oceans are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Arctic Ocean.

Multiple choice geography earth as a planet spheres of earth earth and structure introduction to the spheres of the earth

The life in all forms is confined to _____________.

  1. Hydrosphere

  2. Atmosphere

  3. Biosphere

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

For organisms to live, certain environmental conditions (such as proper temperature and moisture) must exist, and the organisms must be supplied with energy and nutrients (food). All the animal and mineral nutrients necessary for life are contained within Earth's biosphere.

Multiple choice geography rivers rivers and their work exogenic forces exogenic processes part-1

A river enters the sea or disappears before joining the sea is called its _________.

  1. mouth

  2. source

  3. course

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The last past of the river when it reaches the end of its journey, it is called an old river or the old stage. The end of the river is called the mouth. At the mouth, there is often a river delta, a large, silty area where the river splits into many different slow-flowing channels that have muddy banks. At this stage deposition is the only work of the river.

Multiple choice geography rivers rivers and their work exogenic forces exogenic processes part-1

A river depends on the degree of _________.

  1. Inclination

  2. Gradient of its course

  3. Both A and B

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

A river's behavior, including its erosive power and flow characteristics, is significantly influenced by both its inclination and the gradient of its course, which are essentially related concepts.

Multiple choice chemistry air and atmosphere natural cycles and resources constituents of air component of air - nitrogen

Which of following statements is true?

  1. The salinity of rivers increases with time

  2. The salinity of rivers decreases with time

  3. The salinity of seas increases with time

  4. The salinity of seas decreases with time
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A falling of rain on earth causes breaking up of rocks and transferring their minerals to the ocean, the ocean becomes saltier and by evaporation, water evaporates leaving salt in the oceans.


So, by this, we can say that salinity of increases with time.

Hence, the correct option is $\text{C}$

Multiple choice chemistry air and atmosphere natural cycles and resources constituents of air component of air - nitrogen

Almost all the water on the earth is contained in the:

  1. seas and oceans

  2. rivers, lakes, ice caps

  3. as ground water and in the atmosphere

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

Almost all the water on the earth is contained in the oceans, seas, rivers, lakes, ice caps, as ground water and in atmosphere as water vapour.

Option (D) is the correct answer.