2. the lionfish are disrupting the marine food chain because there are no known predators. if you were a scientist working on this problem, what is a strategy you could try to safely eradicate the invasive lionfish and restore the marine food chain? how would you evaluate if your strategy was effective?

I would try to contain then kill all the lion fish in other ways, like using different types of poison. I would record the results from the experiment, then I would see which poison killed faster.

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.