Input: Answer this question:
A chemical property of a mineral is evident if the mineral
Answer: bubbles when acid is placed on it
Input: Answer this question:
Which of the following describes a reason why companies irradiate some fruits and vegetables before they are sold to the public?
Answer: to extend the shelf life by killing existing microorganisms
Input: Answer this question:
The presence of which of the following geological features provides the best evidence that glaciers once covered an area?
Answer: U-shaped valleys
Input: Answer this question:
A person cuts down a living oak tree. The person burns the wood from the oak tree to boil water. Which sequence correctly orders the energy transformations that occurred from the living tree to the boiling of water?
Answer:
light energy -> chemical energy -> thermal energy