Which one is age of fish?

Options

A. Devonian
B. Silurian
C. Permian
D. Cretaceous

Answer

To answer the question "Which one is the age of fish?" we need to identify the correct geological period known for its significant fish population. Here’s a step-by-step solution:

### Step 1: Understand the Question
The question is asking for the geological period that is referred to as the "age of fishes."

### Step 2: Analyze the Options
The options provided are:
- A) Devonian
- B) Silurian
- C) Permian
- D) Cretaceous

### Step 3: Recall Geological Periods
We need to recall the characteristics of each geological period listed:
- **Cambrian**: Known for the explosion of life and the emergence of many marine organisms.
- **Ordovician**: Notable for the diversification of marine life.
- **Silurian**: Marked by the first appearance of land plants and some fish.
- **Devonian**: Known specifically for the dominance and diversification of fishes.
- **Carboniferous**: Characterized by the development of vast swampy forests and the emergence of amphibians.
- **Permian**: Known for the formation of the supercontinent Pangaea and the extinction event at its end.
- **Cretaceous**: Famous for the age of dinosaurs and the emergence of flowering plants.

### Step 4: Identify the Correct Period
Among the options, the **Devonian period** is specifically known as the "age of fishes" due to the significant development and diversity of fish species during this time.

### Step 5: Conclusion
Thus, the correct answer is **A) Devonian**.

---