What happened to Washington when Oregon became a state?

the eastern part of the territory was partitioned off into the new territory of Idaho,

Explanation:

When Oregon became a state, a few parts of the former Oregon Territory were added to Washington. In 1863, the eastern part of the territory was partitioned off into the new territory of Idaho, giving Washington the shape it has today. ... In the early 1870s, the people of Washington voted on statehood but remained divided.

the answer is a. monarch

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long