Oxygen was absent on earth
That's true of both <em>South America</em> and <em>Africa</em>.
Answer: Sustainability is important for a very simple, very straightforward reason: we cannot maintain our quality of life as human beings, the diversity of life on Earth, or Earth’s ecosystems unless we embrace it. There are indications from all quarters and from the smallest to the largest scale that sustainability is something we must address.
Answer:
Reducing the hoofed animal population, which benefits the natural surroundings and smaller herbivores.
Explanation:
