The total percentage of moisture in a dry seed is roughly around ........ .

Options

A. `29%`
B. `15%`
C. `50%`
D. `0%`

Explanation

To determine the total percentage of moisture in a dry seed, we can follow these steps:

### Step 1: Understand the Concept of Dry Seeds
Dry seeds are seeds that have undergone a reduction in water content. This reduction is crucial for the seed's preservation and dormancy.

**Hint:** Remember that dry seeds have low moisture content, which is essential for their longevity.

### Step 2: Analyze the Options Given
The options provided for the moisture percentage in a dry seed are:
- A) 29%
- B) 15%
- C) 50%
- D) 0%

**Hint:** Consider what "dry" means in the context of seeds. It implies that there is still some moisture present, but not much.

### Step 3: Recall General Knowledge About Seed Moisture
In general, dry seeds typically retain a small percentage of moisture. This moisture content is necessary for the seed's metabolic functions, albeit at a very low level.

**Hint:** Think about the typical moisture content in seeds. It's usually not zero, as seeds need some moisture to remain viable.

### Step 4: Estimate the Moisture Content
From biological studies, it is known that the moisture content in dry seeds is approximately 10-15% by mass. This small percentage allows the seed to remain dormant and reduces metabolic activity.

**Hint:** Focus on the range of moisture content that is generally accepted for dry seeds.

### Step 5: Select the Correct Answer
Given the options and the knowledge that dry seeds typically have around 10-15% moisture, the most accurate choice from the options provided is B) 15%.

**Hint:** Choose the option that aligns with the general understanding of seed moisture content.

### Final Answer
The total percentage of moisture in a dry seed is roughly around **15%**.