How is a terrarium similar to a natural ecosystem? how is it different?

Answer:Terrarium is actually an artificially made greenhouse glass container where sunlight easily passes through and we give other necessary objects for the plant growth inside the glass container. And our earth is very similar to the terrarium, our mother nature gives all the necessary objects for plant growth. A terrarium is different however, because in a terrarium there are glass walls that collect the moisture and let it drop back down in smaller quantities.