The abrupt breaking of rocks or explosions, fro example an earthquake or Nuclear bomb.
        
                    
             
        
        
        
The first question is the first option (4 haploid cells; 2 diploid cells). 
The second question is the first option also (nitrogen).
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Planting the same crop in the same place each year zaps nutrients from the earth and leaves soil weak and unable to support healthy plant growth. Because soil structure and quality is so poor, farmers are forced to use chemical fertilizers to encourage plant growth and fruit production.
        
             
        
        
        
Plasmodesmata can change in number, and when dilated can provide a passageway macromolecules 
Plasmodesmata are essential for the intercellular transfer of both big informational macromolecules like proteins and smaller signaling chemicals in plant cells.
- Plasmodesmata are membrane-lined structures that offer a high-conductance, aqueous channel for the transportation of information in the form of chemicals and macromolecules, such as transcription factors, from cell to cell.
- The intimate interaction of the plasma membrane with the endoplasmic reticulum results in the formation of plasmodesmata.
- The degree to which a particular cell acts as an individual or as a component of the entire organism is determined by the distribution and unitary conductance of plasmodesmata as well as other positional variables that affect development.
To learn more about Plasmodesmata visit ; brainly.com/question/28199815
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