35. the un security council voted to send troops to south korea to stop the invasion by north korea. why didn't the soviet union veto the action? the government of the united states did not recognize the soviet union, so the soviets did not have a seat on the security council. josef stalin voted for the action in hopes that it would improve relations with the united states. the soviets were boycotting the un at the time. the soviet union did not have the power to veto the action.

- The Soviet Union did not have the power to veto the action.

- "Just two days after communist North Korean forces invaded South Korea, the United Nations Security Council approves a resolution put forward by the United States calling for armed force to repel the North Korean invaders. The resolution passed by a vote of 7 to 1."

- "Just two days after communist North Korean forces invaded South Korea, the United Nations Security Council approves a resolution put forward by the United. The action provided the pretext for U.S. intervention in the conflict and was The Soviet Union, as a permanent member of the Security Council."

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)