At the boundaries of tectonic plates, rock materials
A. are brought to Earth's surface through the process of erosion.
B.
are brought to Earth's surface from its interior and to Earth's interior from its surface.
C. cannot be found due to the process of melting.
D.
are only brought to Earth's interior from the surface.

sorry i do not know this

it is

a

asked for and recieved from the united states

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.

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