Explanation:

- In Manipur, Jhum cultivation is practiced, but it does not cover more than 50% of the area. It is prominent but not as dominant as in some other states.

- In Assam, Jhum cultivation is less widespread due to the state's focus on rice paddies and tea plantations.

- Sikkim has limited Jhum cultivation. The state's agriculture focuses more on terraced farming and organic agriculture.

- Mizoram is known for Jhum cultivation. The state has rugged terrain, and a significant portion of the population practices shifting cultivation.