How and why are seeds dispersed?

Plants disperse their seeds in lots of different ways. Some seeds are transported by the wind and are shaped to float, glide or spin through the air take weeds for example they disperse their seeds in the wind to create more around the yard

B

Step-by-step explanation:

The circumference of a circle is denoted by: C = , where d is the diameter.

Here, the diameter is d = 50. So, plug this in: C = ≈ 157

Thus, the answer is B.

Hope this helps!