Answer:
It was formed around 4.5 billion years ago when something the size of mars smashed into the Earth, which made matter fly into orbit.
 
        
             
        
        
        
Answer:
loss of animal habits
Explanation:
I know this 1st answer alone I dont know the remaining
I hope it may helps you
 
        
                    
             
        
        
        
The answer to this would be a quartz. 
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO₄ silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂ 
so that is why quartz would be the best be carried in solution by a stream.
Hope this helped :)
Have a great day
        
             
        
        
        
Red blood cells, also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues—via blood flow through the circulatory system. RBCs take up oxygen in the lungs, or gills of fish, and release it into tissues while squeezing through the body's capillaries.
this is about red blood cells but what are you asking