Consider the following four statements (i)-(iv) about certain desert animals such as kangaroo rat.
i) They have dark colour and high rate of reproduction and excrete solid urine ii) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs iii) They feed on dry seeds and do not required drinking water iv)They excrete very concentrated urine and do not use water to regulate body temperature. Out of these four, which two are correct :

Options

A. (iii) and (i)
B. (i) and (ii)
C. (iii) and (iv)
D. (ii) and (iii)

Answer

To determine which two statements about desert animals like the kangaroo rat are correct, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement (i)**: "They have dark colour and high rate of reproduction and excrete solid urine."
- **Analysis**: While kangaroo rats may have darker coloration for camouflage, the claim about solid urine is misleading. They primarily excrete concentrated liquid urine, not solid.
- **Conclusion**: This statement is **partially correct** but not fully accurate regarding urine.

2. **Statement (ii)**: "They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs."
- **Analysis**: Kangaroo rats are adapted to desert life; they do not drink water directly and have adaptations to conserve water. They also have fur that helps reduce water loss.
- **Conclusion**: This statement is **correct**.

3. **Statement (iii)**: "They feed on dry seeds and do not require drinking water."
- **Analysis**: Kangaroo rats primarily feed on dry seeds and can obtain moisture from their food, thus they do not require drinking water.
- **Conclusion**: This statement is **correct**.

4. **Statement (iv)**: "They excrete very concentrated urine and do not use water to regulate body temperature."
- **Analysis**: Kangaroo rats do excrete very concentrated urine to conserve water. They also do not rely on water for thermoregulation, as they have other means to manage body temperature.
- **Conclusion**: This statement is **correct**.

### Final Selection:
Based on the analysis:
- **Correct Statements**: (ii), (iii), and (iv)
- However, the question asks for only two correct statements. The most relevant and distinct correct statements are (iii) and (iv).

### Answer:
The two correct statements are:
- (iii) They feed on dry seeds and do not require drinking water.
- (iv) They excrete very concentrated urine and do not use water to regulate body temperature.