YDS PARAGRAF DOLDURMA / TEST 5 19. Soru

19.

Anyone who has ever walked into a spider's
web knows that the silk is deceptively
strong, despite Ms fragile appearance.
Dragline silk, which spiders use to crawl
down from ceiling to floor, is the strongest
of all. It is actually stronger than steel,
holding over 280,000,000kg per square
meter without breaking. ----. Unfortunately,
they have not been successful since spiders
tend to eat each other.