How is water purified in more developed countries like the United States?

What will be an ideal response?


Water is stored in a reservoir for several days so that particles can settle and oxygen levels can rise. This improves the clarity and taste. Next the water travels to a treatment facility where it is purified to meet government standards.

Environmental & Atmospheric Sciences

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Storm surge

A) increases as the hurricane's pressure increases. B) is least dangerous in bays and inlets. C) paradoxically does more damage a kilometer inland than on the coast itself. D) is increased by the drag of high winds on surface waters.

Environmental & Atmospheric Sciences

Assume this house is located in central Alaska. What did this house do to the local landscape to end up so misaligned?

A) The house shifted because of a mudflow. B) The weight of the house generated a debris flow. C) A rockfall knocked the house off its foundation. D) Heat from the house melted the permafrost below.

Environmental & Atmospheric Sciences

Which solstice or equinox in the northern hemisphere occurs when solar insolation is a maximum at the Tropic of Capricorn?

A) Winter B) Spring C) Summer D) Fall

Environmental & Atmospheric Sciences

Latent heat that is the energy source for many storms can be transported by ________

A) carbon dioxide B) water vapor C) ozone D) aerosols E) dust

Environmental & Atmospheric Sciences