Amber belongs to
(a) Quaternary period
(b) Middle tertiary period
(c) Cretaceous
(d) Devonian

Options

A. Quarternanry period
B. Middle teritary period
C. Cretaceous
D. Devonian.

Answer

To determine which geological period amber belongs to, we can follow these steps:

### Step-by-Step Solution:

1. **Understand What Amber Is**:
- Amber is a fossilized plant resin, typically brownish in color. It is produced by ancient plants, specifically conifers.

2. **Identify the Common Source of Amber**:
- The most common conifer that produces amber is from the genus *Pinus*. This indicates that amber is associated with ancient plant life.

3. **Review the Geological Periods**:
- The options given are:
- (a) Quaternary period
- (b) Middle tertiary period
- (c) Cretaceous period
- (d) Devonian period

4. **Determine the Age of Amber**:
- Amber is primarily found in deposits that date back to the Tertiary period, particularly the Middle Tertiary period.

5. **Eliminate Incorrect Options**:
- The Quaternary period is much more recent than the formation of amber.
- The Cretaceous period is known for dinosaurs and is earlier than the Tertiary.
- The Devonian period is much older and is known for the rise of fish and early land plants.

6. **Conclude the Correct Answer**:
- Based on the information, amber belongs to the Middle Tertiary period. Therefore, the correct answer is (b) Middle Tertiary period.

### Final Answer:
(b) Middle Tertiary period

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