well, economic issues. First reason is because you spend money to buy the cigarettes. Second is the government and the tobacco companies buying ingredient form other countries.
The answer would be d because it’s the least active
1. Floss at least once per day. It is best to floss after brushing. Flossing removes plaque that is left behind after brushing from between the teeth and on the gums.
2. Brush your teeth twice a day with a soft-bristled toothbrush. Brush for at least two minutes each time.
3. Use fluoride toothpaste. The fluoride helps strengthen tooth enamel and helps prevent tooth decay.
4. Replace your toothbrush every 3 to 4 months or sooner if needed. A worn-out toothbrush will not clean your teeth as well. If you use an electric toothbrush, change heads every 3 to 4 months as well.
5. Eat a healthy diet. You are less likely to get gum disease if you eat healthy foods.Avoid sweets and sweetened drinks. Eating and drinking a lot of sweets increases your risk of cavities. If you do eat or drink sweets, brush your teeth soon after.
6. Do not smoke. Smokers have more teeth and gum problems than non-smokers.Keep dentures, retainers, and other appliances clean. This includes brushing them regularly. You may also need to soak them in a cleansing solution.
7. Schedule regular checkups with your dentist. Many dentists recommend having the teeth professionally cleaned every 6 months for optimal oral health. Seeing the dentist every 3 to 4 months may be needed if your gums become unhealthy.
