31. From which is the text probably taken?
A. A science fiction
B. Aresearch paper
C. An IT magazine
D. A computer textbook
More than 45,000 years ago, by the shore of present-day Tasmania, a local person picked up a large piece of thick, dark brown seaweed. And he realized that this giant piece of seaweed could be used to make a watertight bag. And 45,000 years later on mainland Australia, people are again turning to seaweed to solve pressing problems. Today, it is used to address the world's climate crisis