The main cause of contagious diseases is not specifically listed in your options. Contagious diseases are primarily caused by pathogens such as bacteria, viruses, parasites or fungi that can be spread, directly or indirectly, from one person to another. Some are transmitted through bites from insects while others are caused by ingesting contaminated food or water or being exposed to organisms in the environment.

However, from the given options, poor hygienic conditions, contaminated food, and contaminated air can all contribute to the spread of contagious diseases. So, if these were the only options, the closest answer would be 'b. All of the above'. But remember, these are just some of the factors that can contribute to the spread, not the main cause.

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The main cause of contagious diseases is not specifically listed in your options. Contagious diseases are primarily caused by pathogens such as bacteria, viruses, parasites or fungi that can be spread, directly or indirectly, from one person to another. Some are transmitted through bites from insects while others are caused by ingesting contaminated food or water or being exposed to organisms in the environment.

However, from the given options, poor hygienic conditions, contaminated food, and contaminated air can all contribute to the spread of contagious diseases. So, if these were the only options, the closest answer would be 'b. All of the above'. But remember, these are just some of the factors that can contribute to the spread, not the main cause.

Knowee AI · Accepted Answer

The main cause of contagious diseases is not specifically listed in your options. Contagious diseases are primarily caused by pathogens such as bacteria, viruses, parasites or fungi that can be spread, directly or indirectly, from one person to another. Some are transmitted through bites from insects while others are caused by ingesting contaminated food or water or being exposed to organisms in the environment.

However, from the given options, poor hygienic conditions, contaminated food, and contaminated air can all contribute to the spread of contagious diseases. So, if these were the only options, the closest answer would be 'b. All of the above'. But remember, these are just some of the factors that can contribute to the spread, not the main cause.

THE MAIN CAUSE OF CONTAGIOUS DISEASE IS _________.a.Poor hygienic conditionsb.All of the abovec.Contaminated Foodd.Contaminated AirClear my choice

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