Answer:
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.
 
        
             
        
        
        
True, plants undergo cellular respiration because they need ATP.
Plants are known as primary producers in the ecosystem because they are able to directly harness the energy from the sun and convert it into complex energy molecules. This process requires ATP.
On the other hand, plants also undergo cellular respiration which is the process by which ATP is produced because the plant also needs ATP to perform the functions of cells.
Learn more: brainly.com/question/9743981
 
        
             
        
        
        
Density - Calculated from measurements of mass and volume
Atom - the basic particle of matter
Motion - calculated from measurements of distance and time
Energy - can change form and move matter 
Can't see the last one but you know process of elimination soo
        
                    
             
        
        
        
 
 
1. Sand particles are too big to dissolve so their density sinks them 
2. Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.