Americans Spend Up to $100 Billion Annually for Bottled Water

question 38

Multiple Choice

Americans spend up to $100 billion annually for bottled water (41 billion gallons) . The only beverages with higher sales are carbonated soft drinks. Recent news stories have highlighted the fact that most bottled water comes from municipal water supplies (the same source as your tap water) , although it may undergo an extra purification step called reverse osmosis.
Imagine two tanks that are separated by a membrane that is permeable to water, but not to the dissolved minerals present in the water. Tank A contains tap water and tank B contains the purified water. In the reverse osmosis process, pressure is applied to the tap water tank to force the water molecules across the membrane into the pure water tank.
-After the reverse osmosis system has been operating for 30 minutes, the solution in tank A would

• A) be hypotonic to tank B.
• B) be isotonic to tank B.
• C) be hypertonic to tank B.

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Definitions:

Nativist Theory

A theory in psychology that suggests that certain skills or abilities are "native" or hard-wired into the brain at birth.

Syntax

The set of rules and principles that dictate the structure of sentences in a language, including word order and sentence formation.

Semantics

The study of meaning in language, including the analysis of the meanings of words, phrases, and sentences.

Functional Fixedness

A cognitive bias that limits a person to using an object only in the way it is traditionally used, preventing them from seeing alternative uses.