Answer:
-322.64 J 
Explanation:
75 N  * cos 125     *    7.5   =  -322.64 J 
 
        
             
        
        
        
The bottleneck event of the plants in an area results in secondary succession.
<h2>What is bottleneck event?</h2>
A bottleneck is an event that drastically reduces the population size of an organism. The bottleneck may be caused by various events, such as an environmental disaster, the hunting or habitat destruction that results in the deaths of organisms.
<h3>Secondary succession</h3>
Secondary succession is a type of ecological succession in which plants and animals recolonize a habitat after a major disturbance such as a devastating flood, wildfire, landslide, lava flow, or human activity e.g., farming or road or building construction.
Learn more about succession here: brainly.com/question/1212975 
 
        
             
        
        
        
Mold
Explanation:
A mold is a cavity that is left behind in the rock after an organism hard part has been dissolved. These are important fossils that useful in relative dating. 
- Some hard parts of organism are preserved in form of molds in soft sediments. 
- The outline and important details of the hard part is preserved when the mold dissolves away. 
- Fossil molds are representative on the internal outline of the hard parts of organisms. 
- They are usually recognized as a part of body fossil in a section. 
learn more: 
Fossils brainly.com/question/7382392
#learnwithBrainly
 
        
             
        
        
        
Answer:
for abt 36 seconds
Explanation: cuz thats how long it was