Why aravalli hills in news ?

Why aravalli hills in news ? :

1. Supreme Court Ruling on Aravalli Definition …

The Supreme Court of India recently accepted a new legal definition of the Aravalli Hills based on a Central government proposal. Under this definition, only landforms that rise 100 metres above the surrounding terrain will legally count as part of the Aravalli range. Experts and activists say this excludes 90 % of the hill range because much of it consists of lower ridges and hillocks.

2. Impact on Environmental Protection

Since legal protections under forest and environmental laws depend on this definition :

• Vast areas once considered part of the Aravalli ecosystem may now lose protection, allowing mining, construction, and development.

• The lower hills — which help recharge groundwater, block desert winds, and sustain biodiversity — could be degraded or destroyed.

3. Alarm Over Mining and Degradation

Separately, reports and surveys show ongoing illegal mining and ecological damage in parts of the Aravalli hills (especially around Bhilwara in Rajasthan). Drone surveys and activists warn that lax enforcement and the new definition could accelerate environmental harm.

🌍 Why the Aravallis Matter

The Aravalli Range — one of the world’s oldest mountain systems spanning Rajasthan, Haryana, Delhi and Gujarat — is environmentally critical because it:

• Blocks desert winds and sandstorms from the Thar Desert, protecting air quality in the Indo-Gangetic plains and Delhi-NCR.

• Recharges groundwater and supports water availability in dry regions.

• Sustains biodiversity, soil stability, and local climate moderation. ‎

Comments

Economics and Their Types

❀ What is Economics ? → The Greek word "OIKONOMIA" is the origin of the English word "ECONOMY" . → Oikonomia means Household Management . → Economics is the social science that analyzes economic process to understand the pattern of production, distribution and consumption of goods and services in an economy. ❋ Branches of Economics ⟹ There are two branches of Economics. 1) Microeconomics ...

ATMOSPHERE AND THEIR LAYERS

ATMOSPHERE An envelope of gases surrounding the planet/any celestial body is called as atmophere. LAYERS OF ATMOPHERE = there are 5 layers of atmosphere. Troposphere Stratosphere Mesosphere Thermosphere Exosphere TROPOSPHERE :- Tropos = Vertical movement of air/mixing of air. This is only layer of atmosphere where we find vertical movement of air. This layer have 100% moisture in air. The temperature decrease in the troposphere is called the Environment Lapse Rate. Thickness of Troposphere : 16 Km on tropic/equitor region 9 Km on poles aThe thickness of troposhpere is more at equitor than the pole region. At the equitor region the solar radiations heats directly the surface. The air present at that region gets warm and moves upward direction. At the pole region the solar radiation heats slintly the surface. The air present at that region does not gets as warm as the air present at the equitor region. The air present at poles is cold therefore the air does not move as ...

HUMAN GENOME PROJECT

HUMAN GENOME PROJECT (HGP) The entire DNA in the haploid set of chromosomes of an oraganism is called a Genome . In Human Genome, DNA is packed in 23 chromosomes. Human genome contains about 3×10⁹ bp (base pairs). Human Genome Project (1990-2003) was the first mega project for the sequencing of nucleotides and mapping of all the genes in human genome. HGP was coordinated by U.S. Department of Energy and the National Institute of Health . Goals of HGP :- Identify all the estimated genes in human DNA. Sequencing of 3 billion chemical Base pairs of human DNA. Store this information in databases . Improve tools for data analysis . Transfer related technologies to other sectors. Address the ethical, legal and social issues (ELSI) that may arise from the project. METHODOLOGIES :- It involves 2 major approaches. 1. Expressed Sequence Tags (ESTs) = Focused on identifying all the genes that are expressed as RNA. 2.Sequence annotation = Sequencing whole set of genome c...

Education

Search This Blog