MCQ
Radioactive substances can cause:
- ✓Cancer
- BMalaria
- CDysentry
- DCommon cold
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$I.$ Cyanobacteria
$II.$ Yeast
$III.$ Symbiotic bacteria
$IV.$ Free living bacteria
Choose the correct option
$(i)$ 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