Match the items in column I and column II and choose the correct option.
`{:("Column I", "Column II"),("UV", (i) "Biomagnificatron"),("Biodegradable organic matter", (ii)"Eutrophication"),("DDT",(iii) "Snow blindness"),("Phosphates",(iv)"BOD"):}`
The correct match is :

Options

A. A-(ii), B-(i), C-(iv), D-(iii)
B. A-(iii), B-(ii), C-(iv), D-(i)
C. A-(iii), B-(iv), C-(i), D-(ii)
D. A-(iii), B-(i), C-(iv), D-(ii)

Answer

To solve the matching question between Column I and Column II, we will analyze each item in Column I and find its corresponding match in Column II based on the explanations provided in the video transcript.

### Step-by-Step Solution:

1. **Identify UV in Column I**:
- UV refers to ultraviolet rays.
- The video mentions that prolonged exposure to UV rays can cause "snow blindness," which is an inflammation of the cornea leading to burning and redness in the eyes.
- **Match**: UV → (iii) "Snow blindness"

2. **Identify Biodegradable Organic Matter in Column I**:
- Biodegradable organic matter relates to the concept of Biological Oxygen Demand (BOD).
- BOD measures the oxygen required by aerobic bacteria for the decomposition of organic matter in water.
- **Match**: Biodegradable organic matter → (iv) "BOD"

3. **Identify DDT in Column I**:
- DDT is a chemical that is associated with the process of biomagnification.
- Biomagnification refers to the increasing concentration of certain pollutants, like DDT, in the tissues of organisms at each trophic level of the food chain.
- **Match**: DDT → (i) "Biomagnification"

4. **Identify Phosphates in Column I**:
- Phosphates are linked to eutrophication, which is the excessive growth of algae in water bodies due to nutrient enrichment.
- The nutrients that contribute to eutrophication include phosphates and nitrogen.
- **Match**: Phosphates → (ii) "Eutrophication"

### Final Matches:
- UV → (iii) "Snow blindness"
- Biodegradable organic matter → (iv) "BOD"
- DDT → (i) "Biomagnification"
- Phosphates → (ii) "Eutrophication"

### Summary of Matches:
- A: UV → (iii) "Snow blindness"
- B: Biodegradable organic matter → (iv) "BOD"
- C: DDT → (i) "Biomagnification"
- D: Phosphates → (ii) "Eutrophication"

### Correct Option:
Based on the matches, the correct option is **C**.

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