1. Plastic Waster 
2. Air Pollution 
3. Toxic Sludge Dumping
        
             
        
        
        
Answer:
<h2>A. Chromosome</h2>
Explanation:
In intermediate phase of cell cycle, DNA replication occurs (in S-phase), so in inter phase, DNA become unfolded and in relaxed state and is available for replicating machinery.
When cell enter into prophase, DNA folds, coils and super coils and finally become in condensed form, which can be seen by microscope.
So this compact form of DNA is called as chromosome.
In humans. there are total 46 chromosomes.
 
        
                    
             
        
        
        
The lining of the back of eye containing two types of photoreceptor cells - rods - sensitive to dim light and black and white - and cones - sensitive to colour. A small area called the fovea in the middle of the retina has many more cones than rods.
        
                    
             
        
        
        
They always increase in numbers
        
                    
             
        
        
        
Answer:
cell is the structural and fundamental unit of life.
Explanation:
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