&answer1.label=Acid rain
&answer2.label=Animals burrowing
&answer3.label=Freeze and thaw
&answer4.label=People walking
&answer5.label=Onion skin
&answer6.label=Tree roots
&title1=Biological
&title2=Chemical
&title3=Physical
&info.info1=Press and hold the green boxes to drag them to their corresponding class. Press the Check button for the answers, and press it again to hide. Press the Solve button to see the solution.  Press the Reset button to start again.  Press the Menu button to return to the activities menu.