Is orange juice is homogeneous

Orange Juice might be considered homogenous in that it doesn't naturally separate when extracted from the fruit. If it isn't filtered there will be pulp which will rise to the surface, and whether filtered or not there will always be a little sediment which is heavier than the water content and so sinks to the bottom of the container; this is why we always shake fruit juices before pouring, but there is no drastic separation.

The longer juice is stored, the more sediment will filter to the bottom and this can be an indicator of how fresh the juice is.

Juice can be homogenised during processing to keep the sediment suspended. Cold pressurisation leaves little or no sediment.