A major problem to understand and correct the problems with the San Joaquin Valley lack of tools and scientific data on valley fever.
- A. lack of scientific tools and data
<h3>What is valley fever?</h3>
The small town of Avenal, in the San Joaquin Valley, is most affected by an incurable disease known as 'valley fever'. Cases of an incurable disease called "valley fever", are multiplying at an alarming and surprising rate in the southwestern United States.
With this information, we can conclude that San Joaquin Valley, is best known for an incurable disease known as 'valley fever', where there is no scientific data that can explain.
Learn more about valley fever in brainly.com/question/13051243
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Founder effect is the example of migration of a random few individuals from one population to a new area to establish a new population.Thus, option C is correct.
What is migration?
Migration is defined as movement of individuals from one place to another in search of employment and livelihood.Some people lives permanently after migration and some returns back to the native place.
Internal migration is the type of migration in which people migrate within state and country.
External migration is the migration to different state and country.
The phenomenon of moving into new place is known as immigration.
Seasonal migration is the migration in which animals or humans migrate in a particular season due to climatic condition.
Therefore,migration of a random few individuals from one population to a new area to establish a new population is an example of founder effect.
Learn more about migration here:
brainly.com/question/2180770
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The question is seems to be incomplete the question is may be like that
Migration of a random few individuals from one population to a new area to establish a new population is an example of _
A) bottleneck effect
B) mutation
C) founder effect 
D) selection
 
        
             
        
        
        
Answer: C) They can contain contaminants that can enter the air during storms or high winds.
Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).
B is wrong because water contamination does not directly relate to respiratory health.
D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).
Hope this helps :)
 
        
                    
             
        
        
        
I think it’s nucleic acid