Smoking is a cause of chronic bronchitis, emphysema, and lung cancer. Cigarettes

The correct answer is - leading and irritate.

Explanation:

Diseases related to the lungs such as COPD (chronic bronchitis and emphysema) are mainly caused by smoking as it is found that smokers die 12 to 13 times more likely than people who do not smokes. Tobacco smoke can result in cancerous cells in the lungs that can develop into lung cancer.

Chemicals that are present in the tobacco of the cigarettes cause inflammation and irritation in the air passage and lungs of the person smoke which leads to these conditions eventually.

The German shepherd eats 14 × 15 = 210  ounces per week.

Step-by-step explanation:

Jo has a gerbil and a German Shepherd. The German Shepherd eats 14 times as much as the gerbil. Altogether they eat 225 ounces of dry food per week.

let gerbil eat a ounces of food

Gerbil eats = a

shepherd eats = 14 × a

Altogether they ate 225 ounces per week , The expression can be written as

a + 14 × a = 225

a + 14a = 225

15a = 225

divide both sides by 15

a = 225/15

a = 15

The German shepherd eats 14 × 15 = 210  ounces per week.