In the following in each set a conservation approach and an example of method of conservation are given
(a)In situ conservation-Biosphere Reserve
(b) Ex situ conseravtion-Sacred grooves
(c)In situ conservation-Seed bank
(d)Ex situ conservation-Cryopreservation
Select the option with correct match of approach and method:

Options

A. (a) and (c)
B. (a) and (d)
C. (b) and (d)
D. (a) and (b)

Answer

To solve the question regarding the conservation approaches and their corresponding methods, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding In-situ Conservation**:
- In-situ conservation refers to the conservation of species in their natural habitats. This includes protecting the ecosystems and natural environments where these species live.
- **Example**: Biosphere reserves are areas designated for the conservation of biodiversity and natural resources, making them a correct example of in-situ conservation.

2. **Understanding Ex-situ Conservation**:
- Ex-situ conservation involves the preservation of species outside their natural habitats. This method is used for species that are endangered or at risk.
- **Example**: Cryopreservation, which involves freezing biological material (like seeds or embryos) for long-term storage, is a method of ex-situ conservation.

3. **Analyzing Each Option**:
- **Option (a)**: In-situ conservation - Biosphere Reserve
- This is correct as biosphere reserves are indeed a form of in-situ conservation.
- **Option (b)**: Ex-situ conservation - Sacred Groves
- This is incorrect. Sacred groves are areas of in-situ conservation as they are preserved in their natural habitat.
- **Option (c)**: In-situ conservation - Seed Bank
- This is incorrect. Seed banks are a method of ex-situ conservation as they store seeds outside their natural habitat.
- **Option (d)**: Ex-situ conservation - Cryopreservation
- This is correct as cryopreservation is a method used to conserve genetic material outside of its natural habitat.

4. **Conclusion**:
- The correct matches are:
- (a) In-situ conservation - Biosphere Reserve (Correct)
- (d) Ex-situ conservation - Cryopreservation (Correct)
- Therefore, the correct answer is options (a) and (d).

### Final Answer:
The correct matches of conservation approaches and methods are:
- (a) In-situ conservation - Biosphere Reserve
- (d) Ex-situ conservation - Cryopreservation