The connection between the political situations in Iran and Nicaragua during the mid-1980s was both countries fought the USSR with weapons supplied by the United States. The correct answer is D. 
        
             
        
        
        
Answer:answer b
Explanation: sorry for being late
 
        
             
        
        
        
A diet high in protein and low in calcium may lead to osteoporosis. This is because protein, especially albumin, binds free calcium in the blood preventing it to be act upon calcitonin and preventing it to deposit in the bones. Low calcium predisposes patients in osteoporosis as there will be no calcium to be deposited in the bones.
        
             
        
        
        
Answer:
1. Scientific question: Can detergent affect flower growth?
2. IV: The soap used in the study  
3. DV: Flower growth  
Explanation:
A scientific question is a well-sustained question about a given phenomenon of the real world which can be answered by experimental and/or observational procedures. A good scientific question must be testable and lead to falsifiable hypotheses. The dependent variable is the variable that is being measured in the experiment, (i.e. it is being affected by the experimental procedure). On the other hand, the independent variable is the variable that isn't changed by the other variables that are being measured in the experiment.