Mrs. Vikram's science class notices that a high pressure system bringing cold air is set to move
into their city. Currently, the weather is warm. As
the cold air enters their region, what will most
likely occur?

Not a  mixture of two common elements that can be separated by physical means.

Answer( precipitate );

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.

Answerit is not a renewable energy source;