Match the following columns
`{:("Column I","Column II"),("Essential elements","Deficiency causes"),(A."N.K.Mg.S.Fe.Mn.Zn",i."Inhibit cell division "),(B."N.K.S and Mo",ii."Necrosis"),(C."Ca.Mg.Cu and K",iii."Delay in flowing"),(D."N.S and Mo",iv."Chlorosis"):}`

Options

A. a-iv,b-iii,c-ii,d-i
B. a-I,b-ii,c-iii,d-iv
C. a-iv,b-I,c-ii,d-iii
D. a-ii,b-iii,c-iv,d-i

Answer

To solve the question of matching the essential elements with their corresponding deficiency causes, we will analyze each element group and its associated deficiency symptoms step by step.

### Step-by-Step Solution:

1. **Identify the Elements in Column A (N, K, Mg, S, Fe, Mn, Zn)**:
- These elements are essential for various physiological functions in plants.
- **Deficiency Cause**: The deficiency of these elements typically leads to **Chlorosis**, which is the yellowing of leaves due to the loss of chlorophyll.

**Match**: A → iv (Chlorosis)

2. **Identify the Elements in Column B (N, K, S, Mo)**:
- These elements are crucial for cell division and overall growth.
- **Deficiency Cause**: The lack of these elements can **Inhibit cell division**, affecting plant growth and development.

**Match**: B → i (Inhibit cell division)

3. **Identify the Elements in Column C (Ca, Mg, Cu, K)**:
- These elements play significant roles in cellular processes and structural integrity.
- **Deficiency Cause**: A deficiency in these elements often results in **Necrosis**, which is the death of tissue, particularly in leaves.

**Match**: C → ii (Necrosis)

4. **Identify the Elements in Column D (N, S, Mo)**:
- These elements are important for flowering and reproductive processes.
- **Deficiency Cause**: A deficiency in these elements can cause a **Delay in flowering**, which can affect the plant's reproductive success.

**Match**: D → iii (Delay in flowering)

### Final Matches:
- A → iv (Chlorosis)
- B → i (Inhibit cell division)
- C → ii (Necrosis)
- D → iii (Delay in flowering)

### Summary of Matches:
- A: N, K, Mg, S, Fe, Mn, Zn → Chlorosis (iv)
- B: N, K, S, Mo → Inhibit cell division (i)
- C: Ca, Mg, Cu, K → Necrosis (ii)
- D: N, S, Mo → Delay in flowering (iii)