Solve matching questions by identifying the most certain pair first.
For example, linking Ozone depletion with UV radiation (A-IV) immediately eliminates options (B) and (C).
Step 1: Understanding the Question:
The task is to match environmental terms in List-I with their corresponding causes, effects, or processes in List-II.
Step 2: Key Concept and Approach:
Let us link each phenomenon from List-I to its direct counterpart in List-II:
1. Stratospheric ozone depletion allows more ultraviolet radiation to reach the Earth.
2. The greenhouse effect traps heat, raising global temperatures.
3. Soil pollution is aggravated by non-biodegradable chemicals like pesticides.
4. Sewage treatment plants are used to clean wastewater, controlling water pollution.
Step 3: Detailed Explanation:
• A. Ozone depletion -- IV. U.V Radiation: Ozone depletion in the stratosphere reduces the absorption of harmful ultraviolet-B (UV-B) radiation, increasing its penetration to the Earth's surface.
• B. Green house effect -- II. Temperature rise: Enhanced greenhouse effect traps infrared radiation, directly causing global warming and temperature rise.
• C. Soil pollution -- I. Pesticides: Excessive application of chemical pesticides contaminates agricultural lands, leading to severe soil pollution.
• D. Sewage treatment -- III. Water pollution control: Sewage treatment plants process domestic and industrial waste to maintain clean aquatic systems, acting as a crucial method for water pollution control.
• This gives the combination: A-IV, B-II, C-I, D-III.
Step 4: Final Answer:
The correctly matched option is A-IV, B-II, C-I, D-III, which corresponds to Option (A).
