Answer:
Chromatography is the method of separating mixture by using a solvent and filter paper..
If two particles have the same charge they will repel each other when brought close together.
Answer:
If the resources they need are not being refilled fast enough, the population will decrease.
Explanation:
If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size.
