Answer:
D. Improving their design to make it easier to recycle them when they are no longer useful.
Explanation:
Just took the test on (APEX)!!
Explanation:
the question it's not complete as I don't know the height as the formula for potential energy is : <u>PE = </u><u>mgh</u>
<em>(m) - mass acceleration due to gravity </em>
<em>(g) - acceleration due to gravity </em><em> </em><em>(</em><em>9</em><em>.</em><em>8</em><em> </em><em>m</em><em>/</em><em>s2</em><em>)</em>
<em>(h) - height</em>