Problem: Randomly generate a fact.

Random fact: when the needle of a compass lines up with Earth 's magnetic poles , the needle points north

Problem: Randomly generate a fact.

Random fact: a tree can be replaced by planting a new tree

Problem: Randomly generate a fact.

Random fact: as the thickness of an object increases , the resistance to damage of that object will increase

Problem: Randomly generate a fact.

Random fact:
reproduction occurs during adulthood