Question

the germinating medium that sticks to the seedling roots should not be knocked off because______.

a. the roots will dry out more rapidly

b. it could spread disease to other seedlings

c. it assures that the seedling will be planted at the right depth

d. shaking the plant may bruise it

Explanation:

To solve this, we analyze each option:

• Option a: The germinating medium (like soil) around roots helps retain moisture. Removing it would expose roots, causing faster drying.
• Option b: The medium sticking to roots isn't a disease - spreading agent in this context.
• Option c: The medium on roots doesn't relate to planting depth.
• Option d: Bruising from shaking isn't the main reason for keeping the medium; it's about moisture retention.

So the correct reason is that roots dry out faster without the medium.

Answer:

a. the roots will dry out more rapidly