Answer: The correct answer is : Living systems depend on the polarity of water, because since water is polar it has an unevenly distributed charge, this means that water molecules are slightly positive and negative, for this reason water is a good solvent, this characteristic is essential in organisms. For example, sugars and other nutrients are dissolved so that the blood cells can carry it to cells in the body. If sugars weren't dissolved, they couldn't reach cells. Water also attracts or is attracted to other molecules and polar ions, including many biomolecules, such as sugars, nucleic acids and some amino acids.
The purpose of the advertisement is to urge people take measures to avoid diseases.
An advertising campaign is a sequence of advertisement messages that share a single topic and theme which make up an integrated marketing communication (IMC) (IMC). A platform known as an IMC allows a collection of people to combine their views, ideas, and ideologies into one sizable media base. Advertising campaigns use a variety of media over a set period of time and aim at specific demographics.
The campaign theme serves as the primary emphasis of the advertising campaign and serves as the main message that will be communicated through promotional activities. It establishes the tone for the many individual advertisements and other marketing materials that will be used.
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The correct answer to this question is this one: "D. having a rock concert in a public park in Japan"
The first three have a key point: requiring or changing by force. The last one just says having a rock concert in a public park in Japan. It's not forced, but voluntary whereas the first three are in a sense, forced.