Answer:
Sending humans to other planets may cause danger. We dont fully know what these planets are capable of doing. If there is such a thing as life on other planets then we still dont know weather or not life there is friendly or not. They could be harmful, because just as we dont know know exactly who or what they are, they dont know who or what they are either, so its a high chance they may want to defend themselves.
Explanation:
 
        
             
        
        
        
I think there is a 50% chance of the coin landing on either side because the labelling of the coin will not affect the balance of the coin, and therefore won’t alter the flip. Labelling the coin ‘b’ and B’ will result in a coin flip no different from if the coin remained unlabelled.
        
             
        
        
        
There are two types of biological organization, I believe.
The first would be (from smallest to largest).
Species
Genus
Family
Order
Class 
Phylum
Kingdom
Domain
The other would be: 
Atom
Molecule
Cell
Tissue
Organ
Body system
Organism (Individual)
Population
Community
Ecosystem
Biosphere
Hope this helps c:
        
             
        
        
        
The answer ahould bbe A: cuz the sound wave itself has no defend to water and travel!!
Explanation:
HOPE IT HELP!!