The correct answer is Damodar. It is a river flowing across the Indian states of Jharkhand and West Bengal. It rises in the Palamau hills of Chota Nagpur at an elevation of about 609.75 m. It is known as a biological desert on account of its pollutants.

Which sea is known as biological desert?

The sea remains still with seaweeds floating on the surface, the Sargasso Sea is an example of an ecosystem. Biologists often refer to it as a biological desert, because it’s largely devoid of plankton,which serve as the basic food supply for small organisms and fishes.

Which river is known as the organic desert?

Damodar River (Pron: /ˈdʌmoˌdaː/) is a river flowing across the Indian states of Jharkhand and West Bengal.

Which river is called river of sorrow?

Damodar River was earlier known as the “River of Sorrows”as it used to flood many areas of Bardhaman, Hooghly, Howrah and Medinipur districts. Even now the floods sometimes affect the lower Damodar Valley, but the havoc it wreaked in earlier years is now a matter of history.

What is biological desert?

These are regions in ocean that contain low phytoplankton biomass or chlorophyl concentration. They are like oceanic desert characterised by nutriant starved saltwater and having least productive ecosystem.

Which areas of marine ecosystems are called biological desert?

This “biological desert” within a swirling expanse of nutrient-starved saltwater is the largest, and least productive, ecosystem of the South Pacific. Together with the subtropical gyres in other oceans, biological deserts cover 40% of Earth’s surface.

Where is Damodar Nadi?

Damodar River, river in northeastern India, rising with its many tributaries, notably the Bokaro and Konar, in the Chota Nagpur plateau of south-central Bihar state. It follows a generally eastward course for 368 miles (592 km) through West Bengal to join the Hugli (Hooghly) River southwest of Kolkata (Calcutta).

Which is the longest river in India?

At over three thousand kilometers long, the Indus is the longest river of India. It originates in Tibet from Lake Mansarovar before flowing through the regions of Ladakh and Punjab, joining the Arabian Sea at Pakistan’s Karachi port.

Which river is known as Yellow River?

The Huang He (Yellow River) Valley is the birthplace of Chinese Civilization. The Yellow River is the second largest river in China and one of the longest river systems in the world.

Which river is known as Dead river in India?

There are also some tributaries of Ghaggar-Hakra River. This river is also known as the ‘ Dead River’.

What is ocean desert?

Ocean deserts are areas of the ocean that do not receive enough ocean. They are oxygen-starved, or, in scientific terms, hypoxic. These deserts are also often called dead zones and can appear in numerous ways.

Why is the open ocean a biological desert?

Regions of ocean that contain low phytoplankton biomass indexed as chlorophyll-concentrations are called “ocean biological deserts”. The concept of ocean fertilisation is based on the effectiveness of the biological pump to sequester large amount of atmospheric carbon into deep layers of the oceans.

What are the causes of biological desert?

Declines in productivity may be the result of climate change, deforestation, overgrazing, poverty, political instability, unsustainable irrigation practices, or combinations of these factors.