X, answer is X, good luck now, pls answer my question pls pls.
        
             
        
        
        
<em>global warming is caused by different gases ,, hence they are affecting the environment by increasing temperature ,, only science can solve such a big problem because during global warming all the reactions that take place are scientific..</em>
        
             
        
        
        
The first statement describes the environmental factor that affected the skipper butterflies.
When the birds became involved in the skipper butterflies ecosystem, they became a biotic environmental factor. The other answer choices are not environmental factors, but they are adaptations and examples of survival of the fittest.
Hope this helps! Good luck! :)
        
             
        
        
        
Answer:
After you have established a research question, which of the following should you do first?
 put your research question into a null and alternative hypothesis
Explanation:
It expedient that after research question has been established, one needs to make a null hypothesis and alternate it, this gives a clue of what the researcher intends to find or problem to be solved.