Problem: Write a question you would see in a school textbook.

Answer: Ice cream in a bowl changed from solid to liquid in a few minutes. Which of the following most likely caused this change?

Problem: Write a question you would see in a school textbook.

Answer: In May 2007, wildfires burned more than 350 square miles of habitat in Florida and Georgia. Intense fires like this one can temporarily remove nitrogen, phosphorus, and potassium in area soil. What most likely happens in the burned areas until organic decay replenishes the lost nutrients?

Problem: Write a question you would see in a school textbook.

Answer:
According to the Periodic Table of the Elements, mercury (Hg) is different from other metals because mercury is