Runoffs from a mine have contaminated the groundwater in a location. This might cause health problems among people in the location. Which of these is the best plan to solve this problem?

Plant trees around the mine to absorb contaminated water
Collect the runoff in retention ponds lined with protective barriers
Put fences around mines to stop the flow of contaminated water
Drain local aquifer into retention ponds to store the contaminants

How does velocity and mass affect momentum?

Gusing the milligrams of ascorbic acid you entered above, the ratio of total sample volume to aliquot volume, and the total milligrams of the vitamin c tablet that you dissolved, calculate the mass of ascorbic acid in the vitamin c tablet for each trial. do this by scaling up to find the amount (mg) of ascorbic acid in your 250 ml flask. enter your calculated mass of ascorbic acid in the vitamin c tablet, for each trial. be sure to enter your calculated mass in the corresponding order that you entered your milligrams of ascorbic acid. the milligrams of ascorbic acid you entered for entry #1 previously should correspond to the mass of ascorbic acid that you enter for entry #1 here.

What are the similarities between compounds and mixtures?