16 Questions
Which country is the source of the Indus River located in?
China
Where does the Indus River originate?
Lake Manas Sarovar
What is the length of the Indus River approximately?
3,180 kilometers
Which cities does the Indus River flow through?
New Delhi and Lahore
What environmental significance does the annual flooding of the Indus River bring?
Provides essential nutrients to the soil
What has significantly altered the natural flow of the Indus River and its ecosystem?
Large scale irrigation systems
Which plant hormone is primarily responsible for promoting seed germination and stem elongation?
Cytokinins
What is the main function of Abscisic Acid (ABA) in plants?
Causing seed dormancy
Which plant hormone facilitates the bending of plant parts towards a light source?
Auxins
What is the primary function of Cytokinins in plants?
Stimulating cell division
Which plant hormone is mainly released during times of water scarcity?
Abscisic Acid
Which plant hormone triggers cell elongation and organ formation?
Gibberellins
What is the main role of cytokinins in plants?
Promoting cell division and organ regeneration
Which plant hormone is responsible for enhancing plant wound healing?
Auxins
What effect does abscisic acid have on plants under water stress conditions?
Triggering leaf drop
Which gaseous plant growth regulator promotes fruit ripening and flower development?
Gibberellins
Study Notes
The Indus River: An Overview
The Indus River, known as the Sindh River in Pakistan, is one of the longest rivers in Asia, originating in Tibet, China, and flowing through several countries including India and Pakistan before emptying into the Arabian Sea. Its length spans approximately 3,180 kilometers (around 1,976 miles).
Geographical Features and Location
The source of the Indus River is located in the Himalayas near Lake Manas Sarovar at an elevation of over 5,500 meters (around 18,000 feet). It then flows through the northern plains of India and Pakistan, passing through several major cities including Haridwar, New Delhi, and Lahore.
Importance and Environmental Significance
The Indus River plays a crucial role in the ecology of its surrounding regions due to its vast network of floodplains and deltas. Its annual flooding provides essential nutrients to the soil, promoting agricultural productivity, particularly for crops like rice. However, human interventions such as construction of dams and large scale irrigation systems have altered the natural flow of the river and its ecosystem.
Furthermore, the river is home to diverse flora and fauna species, contributing to biodiversity hotspots along its course. The riparian zone supports both wetland and terrestrial habitats, providing shelter for numerous bird species, reptiles, fish, and mammals.
Despite its importance, the Indus has faced significant environmental challenges. Flood management practices have led to the loss of floodplains, which are vital for ecological balance and are essential for the survival of floodplain ecosystems. Additionally, overexploitation of groundwater resources has resulted in a decrease in water availability in some areas.
In conclusion, the Indus River, with its vast geographical reach, cultural significance, and diverse flora and fauna, is an integral part of the ecology and economy of several countries. Understanding its importance and challenges can aid in sustainable management practices that preserve this natural resource for future generations.
Explore the geography, environmental significance, and challenges facing the Indus River. Learn about its origins in Tibet, the impact of human interventions, and the diverse flora and fauna that depend on its ecosystem.
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