Question

5 — water pollution: point versus nonpoint source
learning objective: differentiate between point and nonpoint source water pollution.
which of the following is a point source of water pollution?
a.) eroded soil from construction sites
b.) chemicals and heavy metals from mining operations
c.) soil erosion from deforestation
d.) ocean and lake dumping of waste

Explanation:

Point - source pollution comes from a single, identifiable source. Ocean and lake dumping of waste has a specific, identifiable location (the dumping site), while eroded soil from construction sites, chemicals from mining operations, and soil erosion from deforestation are more diffuse non - point sources resulting from multiple contributing factors over a large area.

Answer:

d. Ocean and lake dumping of waste