Why did China and the Soviet Union decide to support North Korea after World War ||? They wanted to add Korea's territory to their own.
They wanted to spread communism to other countries.
O They wanted to gain access to more ports on the Pacific Ocean.
O They wanted to strengthen their defenses against Japan and the US.

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

Aplane cuts a pyramid as shown in the diagram. what is the shape of the cross section? a. a hexagon b. a pentagon c. a square d. a triangle