Changes in local environments can have global effects for several reasons. Animals, like birds, migrate from region to region. A change in one of their environments can cause behavioral changes which will affect other organisms living in these environments. Air and water move among regions.
        
                    
             
        
        
        
Natural Selection is when traits are "naturally" selected for, because "survival of the fitttest."  Example would be a species becoming bigger over time, because the smaller animals of that species were more likely to be eaten by predators.  Natural selection is when the "best" trats are passed down due to chance
Selective breeding is if an outside forece (like a dog breeder) "chooses" a triat to be passed down.  Example, instead of breeding a brown dog with a white dog, the breeder breeds two black dogs together in orer for the litter to all have black fur
 
        
             
        
        
        
Atom,molecule,cell,tissue,organism,population,ecosystem,biosphere.
        
                    
             
        
        
        
These changes can be natural, such as through variations in the solar cycle. 
<h3>Climate history</h3>
Clam shells 
2. 800,000 years ago
Ice cores
1. 150 million years ago
Oldest rocks in the world
5. 3.8 billion years ago
Tree cores
3. 10,000 years ago
Ocean sediments
4. 200 million years ago
With this information we can conclude that these changes may be natural, such as through variations in the solar cycle. But since 1800, human activities have been the main driver of climate change, mainly due to the burning of fossil fuels like coal, oil and gas.
Learn more about Climate in brainly.com/question/885982
 
        
             
        
        
        
10 things I know about you:
1. You are reading this
2. You are a human
3. You can't say the letter "p" without separating your lips
4. You just attempted to do it
6.You are laughing at yourself
7. You have a smile on your face and skipped number 5.
8. You just checked to see if there was a number 5.
9. You laugh at this because you fell for it and everyone else did too.
10. Now copy and paste this to see who else falls for it! # i know what you doing.