Answer:
it's a shape
Explanation:
it's a shape with a few sides 
 
        
                    
             
        
        
        
All chordates. a notochord is present at some point in all chordates but sometimes is lost or becomes another structure, like vertebrae
Also idk what “Tregon” so hopefully that didn’t stray from my answer being right
        
             
        
        
        
Answer:
mark as brainiest please
Explanation:
Agricultural Activities
mining
urbanisation
illegal longing 
forest fires
Natural causes as hurricanes, fires, parasites and floods.