Consider the given statements. Choose, which of the following statement is incorrect? 

1. Antibiotics are effective against diseases caused by viruses only.
2. Penicillin and Streptomycin are the antibiotics.
3. Antibiotics inhibits bacterial growth.
4. Antibiotics should only be taken under a doctor’s prescription strictly.

Dear student
Statement 1 is incorrect.
Antibiotics are medicines that kill bacteria and help stop infections caused by them. They are not effective against viruses and other micro-organisms. They should be taken only when prescribed by doctors and according to the dose recommended by them. Example - Streptomycin, Penicillin, Ampicillin, etc.
Regards