Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

$R$ : Different types of alcoholic drinks are obtained only by fermentation, always followed by distillation process.

$I$. They inhibit ovulation and implantation

$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms

$III$. They prevent the ejaculated semen from entering the female vagina

$IV$. They inhibit spermatogenesis