Read the given statements and select the option that correctly fills the blanks in any two of them.
(i) Species of plants and animals that are found exclusively in a particular area and do not occur naturally anywhere else are called ______ species.
(ii)____ are the large areas of protected land for conservation of wildlife, plant and animal resources and traditional life of tribals living in the area.
(iii) ____is the major cause leading to desertification.
(iv) Zoological park, botanical gardens and gene banks are _____ methods of conservation of biodiversity .

Options

A. (i) Extinct, (ii) National park
B. (ii) Biosphere reserve, (iii) Deforestation
C. (i) Endemic, (iv) In situ
D. (ii) Afforestation, (iv) Ex situ

Explanation

To solve the given statements, we need to fill in the blanks with the correct terms. Let's analyze each statement step by step:

### Step 1: Analyze Statement (i)
The statement says: "Species of plants and animals that are found exclusively in a particular area and do not occur naturally anywhere else are called ______ species."
- The correct term to fill in the blank is **endemic** species. Endemic species are those that are native to a specific location and are not found elsewhere.

### Step 2: Analyze Statement (ii)
The statement says: "____ are the large areas of protected land for conservation of wildlife, plant and animal resources and traditional life of tribals living in the area."
- The correct term to fill in the blank is **biosphere reserves**. Biosphere reserves are designated areas that aim to conserve biodiversity and promote sustainable development.

### Step 3: Analyze Statement (iii)
The statement says: "____ is the major cause leading to desertification."
- The correct term to fill in the blank is **deforestation**. Deforestation, or the clearing of forests, is a significant cause of desertification.

### Step 4: Analyze Statement (iv)
The statement says: "Zoological park, botanical gardens and gene banks are _____ methods of conservation of biodiversity."
- The correct term to fill in the blank is **ex-situ**. Ex-situ conservation methods involve the preservation of species outside their natural habitats.

### Summary of Answers
1. Endemic species
2. Biosphere reserves
3. Deforestation
4. Ex-situ

### Final Answers
- (i) Endemic species
- (ii) Biosphere reserves
- (iii) Deforestation
- (iv) Ex-situ