Standard size of herbarium sheets is

Options

A. 29 x 30 cm
B. 29 x 41 cm
C. 28 x 41 cm
D. 30 x 41 cm

Answer

### Step-by-Step Solution:

1. **Understanding Herbarium**: A herbarium is a collection of preserved plant specimens that are used for scientific study. The specimens are typically dried and mounted on sheets.

2. **Purpose of Herbarium Sheets**: The sheets serve as a way to document plant species, including their physical characteristics and the data associated with them, such as location, date of collection, and collector's name.

3. **Standard Size of Herbarium Sheets**: The standard size for herbarium sheets is 29 cm in width and 41 cm in length. This size is widely accepted in botanical studies for consistency and ease of use.

4. **Evaluating Options**: When presented with multiple-choice options, we need to identify which one matches the standard dimensions:
- **Option A**: 29 cm x 30 cm (incorrect, as the length is wrong)
- **Option B**: 29 cm x 41 cm (correct, matches the standard size)
- **Option C**: 28 cm x 41 cm (incorrect, as the width is wrong)
- **Option D**: 30 cm x 41 cm (incorrect, as the width is wrong)

5. **Conclusion**: After evaluating all the options, the correct answer is **Option B**, which states that the standard size of herbarium sheets is 29 cm x 41 cm.