Question

1. How are holes or cavities formed in our teeth?
2. Why are canines sharp and pointed?
3. Monika eats too many sweets and chocolates. Her friend, Nitika, always stops her
from doing this.
(a) What is tooth decay?
(b) What do
you
learn from Nitika?
4. Why are teeth important to us?
5. What are microbes? Write any two uses of microbes.
6. Why should we eat raw vegetables and fruits?​

Answer 1

Explanation:

here's your answer

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Answer 2

1a)The bacteria in your mouth turn them into acids. The bacteria, acid, food debris,

and your saliva combine to form plaque, which clings to the teeth. The acids in plaque dissolve the enamel, creating holes called cavities.

2a)The pointed teeth on either side of your incisors are called canine teeth. People have a total of four canine teeth, two on top and two on the bottom. Because they are pointed and sharp, they are used to tear food

3a)Tooth decay is the softening of your tooth enamel and refers to the damage of the structure of the tooth caused by acids that are created when plaque bacteria break down sugar in your mouth. If this loss of mineral from the enamel is left untreated, a cavity, or hole in the tooth, can eventually occur.

b)we learn caring, helpful from nikita.

4a)Every time we smile, frown, talk, or eat, we use our mouths and teeth. Our mouths and teeth let us make different facial expressions, form words, eat, drink, and begin the process of digestion. The mouth is essential for speech. With the lips and tongue, teeth help form words by controlling airflow out of the mouth.

5a)A microorganism is a living thing that is too small to be seen with the naked eye. Examples of microorganisms include bacteria, archaea, algae, protozoa, and microscopic animals such as the dust mite.

1. Production of dairy products:

microorganisms in yogurt

Bacteria are the key players here. Bacteria help in fermentation which helps in making different forms of dairy products from milk like curd, buttermilk, butter, cheese. Streptococcus is the most common genus of bacteria that are used in the commercial production of this product.

2.Bread Baking:

A species of Streptococcus is added to the dough before making bread to bring about the required fermentation.

6a)Eating lots of veggies and fruits helps control blood pressure. The diet is low in sodium, so it might help lower your chance of stroke, heart failure, osteoporosis, stomach cancer, and kidney disease. Losing weight and keeping it off can help prevent or manage type 2 diabetes.