why did nuclear arms remain a threat after the cold war?

a. israel, india and pakistan refuses to reduce their stock of nuclear weapons
b. the old soveit union refiused to sign start
c. the us had shared too much nuclear tech with now hostile countries
d. north korea had shared dangerous nuclear weapon plans with india

People,women beliefs,food customs family social along the north and northwest coast there are some springs and aquifers that arab nations but also from india pakistan southeast asia and america

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.