Where are microbes found?

Penicillin was discovered while observing the inhibition of growth of which organism?

Identify the correct statements with respect to antibiotics:
$(i)$ Fleming,Chain,and Florey were awarded the Nobel Prize in $1945$.
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases.
$(iii)$ Penicillin was used to treat American soldiers wounded in World War $I$.

Which organisms can survive at temperatures exceeding $100^{\circ}C$?

Through the extensive knowledge of which of the following, are microorganisms used in various ways for human welfare?

Chloramphenicol and erythromycin (broad-spectrum antibiotics) are produced by