Question

Surgical methods are most effective methods of contraception.

Reason: These prevent fertilization by creating a barrier between the gametes​

Answer 1

Answer:

Female permanent contraception

Several methods are in use for performing permanent contraception in a woman:

Tubal occlusion: Application of devices such as rings, clips or bands to squeeze the tube shut and obstruct the egg passage.  

Tubal ligation: The fallopian tubes are surgically severed and the ends are sutured to prevent the transit of the eggs.

Electrocoagulation: A part of the fallopian tube is destroyed using a low-voltage bipolar electric current. The destroyed portion of the tube clots up and blocks the passage of the eggs