Answer:
The answer is Polyculture.
Explanation:
It is a form of agriculture where more than one types of crops and animals are grown at the same place ,imitating the diversity of the natural ecosystem.
This practice is very advantageous because it helps in pest, weeds and disease with minimal chemical input.
 
        
             
        
        
        
Well there are many catastrophic scenarios that we already overcome. You should consider educating yourself about the great filter. A great filter is a hypothetical barrier that each civilization can or cannot overcome. From here on things get a little complex so I won't bore you with them. But there are experts in this theory called great filter and I'm sure they can tell you a lot about.