Explain the main causes of air pollution in India. Suggest measures to solve the problem.
Show Hint
Solution and Explanation
Environmental degradation, specifically focusing on atmospheric pollution and mitigation strategies.
Step 2: Meaning
Identifying the primary sources contaminating the air and proposing actionable solutions to improve air quality.
Step 3: Analysis
• Causes of Air Pollution:
• Industrial Emissions: Combustion of fossil fuels (coal, oil) in thermal power plants and industries releases toxic gases like sulfur dioxide and nitrogen oxides.
• Vehicular Traffic: High density of automobiles in urban areas leads to massive emissions of carbon monoxide and particulate matter, frequently creating smog.
• Mining and Agriculture: Dust from mining operations and smoke from the burning of agricultural waste (stubble burning) significantly degrade air quality.
• Measures to Solve the Problem:
• Shift to Clean Energy: Replacing fossil fuels with renewable energy sources like solar, wind, and hydroelectric power.
• Promote Sustainable Transport: Encouraging the use of public transportation, carpooling, and the adoption of Electric Vehicles (EVs).
• Strict Regulations: Enforcing stringent industrial emission norms and adopting technology like scrubbers and electrostatic precipitators in factories. Afforestation and creating green belts around cities also help absorb pollutants.
Step 4: Conclusion
Air pollution is driven by industrial and vehicular emissions, requiring a combination of clean energy adoption, technological upgrades, and strict policy enforcement to resolve.
Top CBSE CLASS XII Geography Questions
Read the passage carefully and answer the questions that follow:
Hunting and Food Gathering
The earliest human beings depended on their immediate environment for their sustenance. They subsisted on: (a) animals which they hunted; and (b) the edible plants which they gathered from forests in the vicinity. Primitive societies depended on wild animals. People located in very cold and extremely hot climates survived on hunting. The people in the coastal areas still catch fish though fishing has experienced modernisation due to technological development. Many species, now have become extinct or endangered due to illegal hunting (poaching). The early hunters used primitive tools made of stones, twigs or arrows so the number of animals killed was limited. Gathering and hunting are the oldest economic activity known. These are carried out at different levels with different orientations. Gathering is practised in regions with harsh climatic conditions. It often involves primitive societies, who extract both plants and animals to satisfy their needs for food, shelter and clothing. This type of activity requires a small amount of capital investment and operates at very low levels of technology. The yield per person is very low and little or no surplus is produced.- Examine the role of climate, water availability, and soil fertility on the distribution of world population.
- Examine three stages of demographic transition theory.
- Study the map of Rhine waterways and answer the questions that follow:
- Explain the main features of National Highways in India.
Top CBSE CLASS XII Air Questions
Top CBSE CLASS XII Questions
- 2, b, c are in A.P. and the range of determinant $\begin{vmatrix}1&1&1\\ 2&b&c\\ 4&b^{2}&c^{2}\end{vmatrix}$ is [2, 16]. Then find range of c is
- A boy of mass 50 kg is standing at one end of a, boat of length 9 m and mass 400 kg. He runs to the other, end. The distance through which the centre of mass of the boat boy system moves is
- A capillary tube of radius r is dipped inside a large vessel of water. The mass of water raised above water level is M. If the radius of capillary is doubled, the mass of water inside capillary will be
- A circular disc is rotating about its own axis. An external opposing torque 0.02 Nm is applied on the disc by which it comes rest in 5 seconds. The initial angular momentum of disc is
- A circular disc is rotating about its own axis at uniform angular velocity \(\omega.\) The disc is subjected to uniform angular retardation by which its angular velocity is decreased to \(\frac {\omega}{2}\) during 120 rotations. The number of rotations further made by it before coming to rest is