Answer:
1. The sun shines on a plant 2.chlorophyll traps energy from the sun 3. the plant makes sugar and oxygen 4.cells use sugar for energy 
Explanation:
this might be 
 
        
             
        
        
        
Answer:
C
Explanation:
For productivity to increase, it require an increase in the input which has to be directly proportional to an increase in the output 
 
        
             
        
        
        
Explanation:
The chemicals are contaminant in the ground water system and they can inflict serious health hazards on humans when water is sourced from such polluted ground water system. 
- Consuming contaminated water can lead to cholera and diarrhea. 
- It makes ground water toxic and poisonous. 
- Drinking contaminated ground water can lead to the introduction of heavy metals in the body. 
- Chemical wastes containing radioactive materials can damage body tissues. 
- They render ground water unsafe for drinking ans usage. 
Learn more: 
Air pollution brainly.com/question/10743354
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Answer:
that means they are not a prey to any animal
 
        
             
        
        
        
The two main types are DNA and RNA