Question

20. Statement A: Female-male child sex ratio is declining, at an
correct
Reason R is correct.
alarming rate in our country.
Reason R: Many ways have been devised to avoid pregnancy.
Which is the correct option for Statement A and Reason R?
A. Both Statement A and Reason R are correct, Reason R
correct explanation of Statement A.
B. Both Statement A and Reason R are correct, but Reason
is not explanation of Statement A.
c. Statement A is correct, Reason R is incorrect.
D. Statement A is incorrect, Reason R is correct.
Answer the following questions briefly :
21. Give the full name : AIDS
22. What is called placenta?​

Answer 1

Answer:

Statement A: Female-male child sex ratio is declining, at an  alarming rate in our country.

Reason R: Many ways have been devised to avoid pregnancy.

B). Both Statement A and Reason R are correct, but Reason

QUE : Give the full name : AIDS

Acquired Immune Deficiency Syndrome

QUE : What is called placenta

The placenta is an organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood. The placenta attaches to the wall of your uterus, and your baby's umbilical cord arises from it.