Answer:
You can buy tiny sealed marine ecosystems enclosed in glass. ... like the one in your bottle, you will need to establish an ecological balance in order for all of ... if you have too many animals consuming oxygen and not enough plants ... Water is consumed by both plants and animals, but is also excreted, purified, and reused.
Explanation:
Colonized countries are forced to rely on manufactured goods from their mother countries and prevents development of industry.
Oh this is easy.
Astronomy is the branch
