Question

James wants to create a self-sustaining ecosystem, or vivarium. Which method would most likely result in an ecosystem that is viable for the longest amount of time with no additional care?
Put a few plants, water, sand, and a heat lamp inside a clear glass aquarium and seal the top. Place it in a sunny location.
Put water, fertilizer, soil, plants and insects in an open, clear glass aquarium. Place it in an area that has some sunlight and some shade.
Put rocks, water, and many plants in an open, dark-colored plastic tub. Place it in an area with direct sunlight.
Put soil, water, many plants, a

Answer 1

I think you cut off some of your options, I can see a possible answer but I want to be sure. Please add that info if you can, thank you!