Noncommunicable diseases (NCDs) are not caused by infectious agents and cannot be transmitted from one person to another. Instead, they are primarily influenced by different factors. Here's a breakdown of each option:

1. **Animal vectors**: This option pertains to diseases that are transmitted by animal carriers, which usually relates to communicable diseases (e.g., malaria via mosquitoes). Therefore, this is not a cause of noncommunicable diseases.

2. **Environmental factors**: This is the most relevant choice. Noncommunicable diseases can be influenced by various environmental factors, including pollution, exposure to toxic substances, lifestyle choices, and socioeconomic conditions. For instance, exposure to air pollution can lead to respiratory diseases.

3. **Airborne pathogens**: Similar to animal vectors, airborne pathogens relate to infectious diseases, such as the flu or COVID-19, and do not contribute to noncommunicable diseases.

4. **Viruses**: Typically associated with infectious diseases, viruses do not cause noncommunicable diseases.

### Final Answer
B. Environmental factors are the primary cause of noncommunicable diseases.

Question

Noncommunicable diseases (NCDs) are not caused by infectious agents and cannot be transmitted from one person to another. Instead, they are primarily influenced by different factors. Here's a breakdown of each option:

1. **Animal vectors**: This option pertains to diseases that are transmitted by animal carriers, which usually relates to communicable diseases (e.g., malaria via mosquitoes). Therefore, this is not a cause of noncommunicable diseases.

2. **Environmental factors**: This is the most relevant choice. Noncommunicable diseases can be influenced by various environmental factors, including pollution, exposure to toxic substances, lifestyle choices, and socioeconomic conditions. For instance, exposure to air pollution can lead to respiratory diseases.

3. **Airborne pathogens**: Similar to animal vectors, airborne pathogens relate to infectious diseases, such as the flu or COVID-19, and do not contribute to noncommunicable diseases.

4. **Viruses**: Typically associated with infectious diseases, viruses do not cause noncommunicable diseases.

### Final Answer
B. Environmental factors are the primary cause of noncommunicable diseases.

Knowee AI · Accepted Answer

Noncommunicable diseases (NCDs) are not caused by infectious agents and cannot be transmitted from one person to another. Instead, they are primarily influenced by different factors. Here's a breakdown of each option:

1. **Animal vectors**: This option pertains to diseases that are transmitted by animal carriers, which usually relates to communicable diseases (e.g., malaria via mosquitoes). Therefore, this is not a cause of noncommunicable diseases.

2. **Environmental factors**: This is the most relevant choice. Noncommunicable diseases can be influenced by various environmental factors, including pollution, exposure to toxic substances, lifestyle choices, and socioeconomic conditions. For instance, exposure to air pollution can lead to respiratory diseases.

3. **Airborne pathogens**: Similar to animal vectors, airborne pathogens relate to infectious diseases, such as the flu or COVID-19, and do not contribute to noncommunicable diseases.

4. **Viruses**: Typically associated with infectious diseases, viruses do not cause noncommunicable diseases.

### Final Answer
B. Environmental factors are the primary cause of noncommunicable diseases.

What can cause a noncommunicable disease?A.Animal vectorsB.Environmental factorsC.Airborne pathogensD.VirusesSUBMITarrow_backPREVIOUS

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What can cause a noncommunicable disease?

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Final Answer

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