How can you provide a better explanation of what was happening that made the pie pans fly off the Van de Graaff generator?

Replicate prove reliability and validity

Ineed with this also i hope you understand it

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.