Select the correct text in the passage. Which sentences describe point source pollution?
In this type of pollution, the source of the pollution is single and easily identifiable. When runoff water from the melting of snow mixes with debris, it creates pollution.
The runoff water, mixed with pollutants, reaches large areas with disastrous effects. Alternatively, when a wastewater treatment plant releases harmful chemicals into
a stream, the chemicals pollute the stream water because they are not treated for safety.

Why should the united state be concerned about air pollution in china?

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

How is the carbon cycle related to global warming ?