The present international treaty regarding antarctica:
options:
a. divides the land among the twelve nations claiming rights to it.
b. allocates petroleum and mineral rights among the twelve original treaty signers and eleven other nations.
c. prohibits radioactive-waste disposal, weapons testing, and military related activities on the continent.
d. all of the choices are correct.

C. Prohibits radioactive-waste disposal, weapons testing, and military related activities on the continent

Explanation:

The Antarctica treaty which was signed in 1959 and still in usage stipulates all military activities , radioactive testing and disposal, weapon testing activities should be prohibited. The treaty is only modifiable every 30 years .

Presently , mineral exploration are not allowed.

the correct answers are:

a - pacific plate;

it is the biggest oceanic tectonic plate. surrounded on all sides by continental tectonic plates, it is submerging and gradually becoming smaller and smaller.

b - north american plate;

huge continental plate, occupying big portion of the northern hemisphere.

c -eurasian plate;

alongside the north american plate, it is one of the two dominant continental plates in the northern hemisphere.

d - indian plate;

a small continental plate, that has been part of gondwanaland initially, but after the break up of it, moved towards northeast and pushed into the eurasian plate that was once part of laurasia.

the awnser is a

it is not b or c