Zebra mussels are originally native to russia. in the mid-1980's, zebra mussels were introduced into the great lake region of the united states where they rapidly reproduced; females can produce up to one million eggs per year. all but one situation would be a problem caused by the introduction of this invasive species. that is a) damage to boats, harbors, and docks. b) other species of mussels thrive and grow in size. c) damage to water treatment plants by clogging up the intakes. d) out competing native species for food, leading to a decrease in their population.

The correct answers are option C- damage water treatment plants by clogging up the intakes and option D- out competing native species for food, leading to a decrease in their population.

Each zebra mussel can filter up to liter water per day to feed on plankton. Sea plankton are the source of food for zebra mussels and they eat a lot of plankton which makes it harder for other sea animals to find food for themselves.

Second problem zebra mussel caused was clogging the water pipes by growing and dividing inside them which disrupts water flow.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

if you know your abc's you should be able to get your answer or just use google