Which one of the following periods is largely associated with extinction of dinosaurs and the increase in flowering plants and reptiles

Options

A. Triassic
B. Jurassic
C. Cretaceous
D. Permian

Answer

To solve the question regarding the period associated with the extinction of dinosaurs and the increase in flowering plants and reptiles, we can follow these steps:

### Step-by-Step Solution

1. **Identify the Era**: The question refers to the Mesozoic Era, which is known as the "Age of Reptiles." This era is divided into three periods: Triassic, Jurassic, and Cretaceous.

2. **Understand the Timeline**:
- **Triassic Period**: Dinosaurs first appeared during this period.
- **Jurassic Period**: Dinosaurs were predominant during this time.
- **Cretaceous Period**: This is the period when the extinction of dinosaurs began.

3. **Analyze the Cretaceous Period**:
- The Cretaceous Period is characterized by the decline and eventual extinction of dinosaurs.
- During this period, there was also a significant increase in flowering plants (angiosperms) and other reptiles.

4. **Evaluate the Options**:
- **Triassic**: Incorrect, as this is when dinosaurs first appeared.
- **Jurassic**: Incorrect, as dinosaurs were predominant but not extinct.
- **Cretaceous**: Correct, as it is associated with the extinction of dinosaurs and the rise of flowering plants and other reptiles.
- **Permian**: Incorrect, as this period is part of the Paleozoic Era and predates the Mesozoic Era.

5. **Conclusion**: The correct answer is the **Cretaceous Period**, which is largely associated with the extinction of dinosaurs and the increase in flowering plants and reptiles.

### Final Answer
**Cretaceous Period**

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