Read the given statements and select the option that correctly identifies them as true (T) and false (F) ones.
(i) Crop rotation is the practice of growing two or more different kinds of crops on a piece of land in a pre-planned succession.
(ii) Catla and Silver carp are column feeders whereas Rohu and Grass carp are surface feeders in a composite fish culture system.
(iii) Apis mellifera is an exotic variety of honey bee whereas Apis dorsata is an indigenous variety of honey bee.
(iv) Manganese, boron and zinc are macronutrients required by plants whereas molybdenum, chlorine and sulphur are micronutrients required by plants.

Options

A. `{:("(i)","(ii)","(iii)","(iv)"),(T,F,T,T):}`
B. `{:("(i)","(ii)","(iii)","(iv)"),(F,F,T,F):}`
C. `{:("(i)","(ii)","(iii)","(iv)"),(T,F,T,F):}`
D. `{:("(i)","(ii)","(iii)","(iv)"),(T,T,F,T):}`

Answer

To solve the question, we need to evaluate each statement individually and determine whether it is true (T) or false (F).

**Step 1: Evaluate Statement (i)**
- Statement: "Crop rotation is the practice of growing two or more different kinds of crops on a piece of land in a pre-planned succession."
- Analysis: Crop rotation indeed involves growing different types of crops in a planned sequence to improve soil health and reduce pests.
- Conclusion: This statement is **True (T)**.

**Step 2: Evaluate Statement (ii)**
- Statement: "Catla and Silver carp are column feeders whereas Rohu and Grass carp are surface feeders in a composite fish culture system."
- Analysis: In reality, Catla and Silver carp are surface feeders, while Rohu is a column feeder and Grass carp is a bottom feeder.
- Conclusion: This statement is **False (F)**.

**Step 3: Evaluate Statement (iii)**
- Statement: "Apis mellifera is an exotic variety of honey bee whereas Apis dorsata is an indigenous variety of honey bee."
- Analysis: Apis mellifera is indeed an exotic species introduced from other regions, while Apis dorsata is native to the region.
- Conclusion: This statement is **True (T)**.

**Step 4: Evaluate Statement (iv)**
- Statement: "Manganese, boron and zinc are macronutrients required by plants whereas molybdenum, chlorine and sulphur are micronutrients required by plants."
- Analysis: Manganese, boron, and zinc are actually classified as micronutrients, while molybdenum, chlorine, and sulfur are also micronutrients. Thus, the classification in the statement is incorrect.
- Conclusion: This statement is **False (F)**.

**Final Summary of Statements:**
1. (i) True (T)
2. (ii) False (F)
3. (iii) True (T)
4. (iv) False (F)

**Answer:**
- The correct identification of the statements is:
- (i) T
- (ii) F
- (iii) T
- (iv) F

**Option Selection:**
Based on the evaluations, the answer is option number three, which correctly identifies the true and false statements.

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