The microflora occurring in the largest number in soil are

Which of the following statements is false regarding microorganisms?

Antibiotics are mostly obtained from

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 $I$.

The nutritive medium for growing bacteria and many fungi in the laboratory is called

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