Read the given statements and select the option which correctly fills up the blanks.
A. Infectious Bursal Disease (IBD) is ___(i)____ disease of poultry.
B. ____(ii)___ is growing two or more crops simultaneously on the same field in a definite pattern.
C. _____(iii)____ is a surface feeder fish.
D. Green manure helps in enriching the soil in ____(iv)____ and ___(v)__.

Options

A. (i) Viral, (ii) Intercropping, (iii) Catla, (iv) Hydrogen, (v) Nitrogen
B. (i) Bacterial, (ii) Mixed cropping, (iii) Rohu, (iv) Nitrogen, (v) Phosphorus
C. (i) Viral, (ii) Intercropping, (iii) Catla, (iv) Nitrogen, (v) Phosphorus
D. (i) Fungal, (ii) Mixed cropping, (iii) Rohu, (iv) Nitrogen, (v) Phosphorus

Answer

To solve the question, we need to fill in the blanks based on our knowledge of biology. Let's go through each statement step by step.

### Step-by-Step Solution:

1. **Statement A: Infectious Bursal Disease (IBD) is ___(i)____ disease of poultry.**
- Infectious Bursal Disease is known to be a viral disease that affects poultry. Therefore, the correct word to fill in the blank is **"viral."**

2. **Statement B: ____(ii)___ is growing two or more crops simultaneously on the same field in a definite pattern.**
- The practice of growing two or more crops together in the same field is known as **"intercropping."** Thus, we fill in the blank with **"intercropping."**

3. **Statement C: _____(iii)____ is a surface feeder fish.**
- Among the common surface feeder fish, **"Catla"** is well-known for feeding at the surface of the water. Therefore, we fill in the blank with **"Catla."**

4. **Statement D: Green manure helps in enriching the soil in ____(iv)____ and ___(v)___.**
- Green manure is primarily used to enrich soil with nutrients, particularly **"nitrogen"** and **"phosphorus."** Hence, we fill in the blanks with **"nitrogen"** for (iv) and **"phosphorus"** for (v).

### Final Answers:
- (i) viral
- (ii) intercropping
- (iii) Catla
- (iv) nitrogen
- (v) phosphorus