Answer: False
A lake is a water body that is surrounded by land. The water in the lake comes from melting glaciers, rain, groundwater, rivers. Lake formation also occurs when a water body is restricted to it's natural flow. Erosion due to wind  and water will limit the life of lake. As, soil removed during landslides or mudslides from hills or mountains get settled as debris at the bottom of lake will cause water pollution. Also, soil coming from agricultural field through water will carry in it fertilizers ,which will promote excessive plant and algal growth in lakes therefore, oxygen content of lake water will decrease which lead to death of animals residing in lake hence, will ultimately lead to water pollution ,which will be responsible for limiting the life of lake. 
 
        
                    
             
        
        
        
Secondary since plants/animals already lived there, but got killed/driven out of the area they lived/thrived in/on. 
 
        
             
        
        
        
These layers<span> do not correspond on a one-to-one basis with the </span>compositional layers<span>. The Earth has five mechanic </span>layers<span>: The lithosphere is the outermost mechanical </span>layer<span> and is the most rigid </span>layer<span> of the Earth. The lithosphere consists of the crust, and some of the uppermost mantle.</span>
        
             
        
        
        
Answer:
plywoods boxes
Explanation:
Spraying the pesticides on plywood boxes seems a better alternative as this method is used to check the time it takes for the pesticide to dissipate.