What is the basic difference between waste
products and excretory products?

All waste products are not excretory products but all excretory products are waste products

Explanation:

Every living organism needs oxygen and nutrients for survival. In the process, they discharge products that can no longer be used by their system. These “wastes” can be categorized into two types based on their discharged material. The materials discharged during the process of Egestion are undigested matter leftover from the process of digestion. Excretion, on the other hand, discharges metabolic waste products. This is the main Difference Between Egestion And Excretion.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."