Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
    These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
 
        
             
        
        
        
It's called t<span>he trachea.</span>
        
             
        
        
        
Answer:
Background Information: A cladogram is a diagram that shows evolutionary relationships among groups. It is based on phylogeny, which is the study of evolutionary relationships. ... Each letter on the diagram points to a derived character, or something different (or newer) than what was seen in previous groups.
 
        
             
        
        
        
Theories are educated guests that are tested by experiments
        
             
        
        
        
Answer:
Now, with video, time-lapse photographs and GPS tracking of Racetrack Playa's moving rocks, the mystery has finally been solved.
Explanation:
Hope This Helped ;)