True or false? elements are impure, meaning that different samples of an element have different properties.

Answercan utilize even low wind speed to produce electricity;

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.

Ithink d hope that

I'm pretty sure its c