Weathering, acid rain can mostly destroy like stone, I suggest you look up pictures of acid rain and how it affects (limestone)
        
             
        
        
        
A teacher writing to a confused student. 
bacteria are microscopic (very tiny) organisms that are unicellular (made up of a single cell). One fundamental difference is that bacterial cells lack intracellular organelles, such as mitochondria, chloroplasts, and a nucleus, which are present in both animal cells and plant cells.
 
        
             
        
        
        
Answer:
Pretty sure its #3
Explanation:
Plants produce flowers to make seeds. To make a seed a flower must be pollinated. Pollen from the male part of one flower travels to the female part of another flower where the seeds are made. ... The petals act like an advertisement to attract various animals, which will carry the pollen from one flower to another.
 
        
                    
             
        
        
        
Answer:
The cell would leak into the surrounding area, like blood on a cut.
Explanation: