Answer:
The charge of the purple circles should be positive because they represent the nuclei.
Explanation:
Answer: S,Fe,O2,Sr, and Al
Explanation: I saw it on quizlet
Its called the articular cartilage where <span>white tissue covers the ends of bones where they come together. It makes </span><span>our joints makes it easier to move and allows the bones to glide over each other not causing a lot of friction. </span>
He variable that a scientist changes when conducting an experiment is called the manipulated variable