Norplant’ is the new form of birth control and it
Allows ovulation but doesn’t allow fertilization
Makes the cervical mucus thin making sperm entry into the uterus difficult
Has progestin as the active ingredient
Is effective for a maximum of one year
On which day, world population touched $5 ^{th}$ billion?
According to $1991$ census, rural population of India is
Housing problems, health problems, pollution problems etc. are created by the
Syphilis is an infectious bacterial disease caused by Treponema pallidum with $3$ stages
$(A)$ Infectious painless ulcers on the genitals $\quad$$(i)$ First
$(B)$ Blindness, heart trouble,aortic impairment $\quad$$(ii)$ Second
$(C)$ Skin lesions, hairloss,swollen joints $\quad$$(iii)$ Third
Which of the following is the correct match between the symptoms and stage?