Question

it is said by dr stephen hawkin that particles convert into antiparticle and antiparticles convert into particles infront of a black hole so thay do not anhillate each other but why?​

Answer 1

because of ... gravity may be and why

Because the matter in a black hole is so dense, the force of gravity within the black hole becomes immensely strong, attracting everything within a certain radius and not even allowing light to escape. ... Well, one of the most fascinating and unsolved mysteries of the universe is what happens inside a black hole