During the formation of metamorphic rocks, what leads to increased heat? Check all that apply.
Sun warms rocks
Magma pockets rise.
Friction occurs between sliding rocks.
Lava at Earth's surface flows over rocks.
Rocks beneath Earth's surface are forced toward the mantle.

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i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

hope this :