The propaganda technique would be name calling
        
             
        
        
        
Decreases. It is vice Versa. If one increases another does too and so vice versa too.
        
             
        
        
        
Answer:European explorers used another tool for figuring out direction—a compass. The compass (left) and the astrolabe (right) were used in the 1500s. These tools helped explorers sail across the Atlantic Ocean to the New World. We still use this tool today.
Explanation:
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Answer: Bottleneck effect
Explanation:
   The bottleneck effect is terms of population size is one of the concept in which there is large reduction in the population size due to the various types of environment related factors and also due to the human activities are as follows:
- Floods
 - Droughts
 - Fires 
 - Earthquakes
 - Planning of the human population 
 
  According to the given question, Bottleneck effect is one of the congestion point in which the large number of species or we can say that population is killed and it also increase the genetic drift. So, the above given situation is illustrating the concept of bottleneck effect.    
  Therefore, Bottleneck effect is the correct answer.