Which example displays a type of point source pollution? - rainwater carrying toxic chemicals and debris to a river -melted snow mixed with debris flowing into a city -untreated water from a factory flowing into a lake -smoke released by trucks -rainwater mixing with garbage on the sidewalks of a street

untreated water from a factory flowing to the river.

Explanation: Point source pollution can be defined as the single source by which the polluted water is coming or pollution is coming.

Here the source is factory and the polluted water from the factory is discharged into the lake.This water from the lake can be transferred to other places.  

So, the point source is polluted water from factory

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

there really is life in the deepest part