Pollution or Carbon Dioxide
Answer:
The clear water representing blood, which runs through the
plastic tubes, will become green as particles from the cardboard tube
are absorbed.
Explanation:
the bold letters are answers
Answer: C Biodiversity has prevented this ecosystem from being sustainable.
Explanation:
The extensive grazing by the organisms in the Chihuahuan Desert which has made the ecosystem unstable has made the ecosystem incapable of sustaining the organisms that depend on it.
This is because the extensive grazing means that the ecosystem in the desert which comprises of the flora has seen its resources being overused and can now no longer support the organisms in it.