Answer:
1. A
2. A/B/C (Either)
3. B
4. B
Explanation:
1. Polio (poliomyelitis) is a highly infectious viral disease. The poliovirus invades the nervous system and can cause irreversible paralysis in a matter of hours. Polio is spread through person-to-person contact.
2. During a circumcision, the foreskin is removed from the head of the penis (glans). The surgery will take just a few minutes. Even though the boy will be awake, there will be no pain while having the procedure done.
3. Dental Prophylaxis Services- Cleanings by a dentist are performed to remove plaque, calculus (hardened decay), and tartar. Scaling or root planing is a form of cleaning or scraping to remove tartar and other deposits from teeth, such as calculus. Flossing is said to remove food and dental plaque between teeth.
4. no need for explanation
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