Tag: science & technology

To answer this question, we need to understand the strength and composition of different parts of the body.

Option A) Teeth - Teeth are incredibly strong, but they are not the strongest part of the body. They are primarily composed of dentin and enamel, which are strong materials, but not the strongest.

Option B) Enamel - Enamel is the outermost layer of the tooth and is considered the hardest substance in the human body. It is made up of minerals, mainly hydroxyapatite, which provides it with its strength. Enamel is highly resistant to wear and decay.

Option C) Bone - Bones are very strong and are crucial for providing support and protection to our body. They are made up of collagen, calcium, and other minerals, which give them their strength. However, in terms of sheer strength, enamel is considered to be stronger than bone.

Option D) None of the above - This option is incorrect because enamel is indeed the strongest part of the body, as explained above.

The correct answer is B) Enamel. Enamel is the strongest part of the body due to its unique composition and structure, making it highly resistant to wear and decay.

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• Wrong explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) True - This option is correct because it is true that we cannot swallow and inhale at the same time. Swallowing involves the closing of the epiglottis to prevent food or liquid from entering the airways, while inhaling requires the opening of the epiglottis to allow air to enter the lungs. These two actions are mutually exclusive and cannot occur simultaneously.

Option B) False - This option is incorrect because it is not possible to both swallow and inhale at the same time.

The correct answer is A) True.

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• Wrong explanation