Answer:
It is worldwide, but once only a spider could weave one
You heard me before, yet you hear me again, then I die. Until you call me again.
I can travel from there to here by disappearing, and here to there by reappearing.
You'll see savory dishes in Hong Kong sizzling in these.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.