Arunachal Pradesh receives heavy rainfall due to its location in the:

Western disturbances zone
Northeastern monsoon zone
Inter-Tropical Convergence Zone (ITCZ)
Semi-arid zone

The correct answer is: b) Northeastern monsoon zone.

Arunachal Pradesh receives heavy rainfall due to its location in the northeastern monsoon zone. The northeastern monsoon is a seasonal wind that blows from the Bay of Bengal towards the northeastern states of India. This wind brings with it a lot of moisture, which causes heavy rainfall in the region.

The other options are incorrect because:

  • The western disturbances zone is a region of low pressure that forms over the western Himalayas. This zone brings with it cold winds and snowfall to the region.
  • The Inter-Tropical Convergence Zone (ITCZ) is a belt of low pressure that lies near the equator. This zone is characterized by heavy rainfall and thunderstorms.
  • The semi-arid zone is a region that receives less than 250 mm of rainfall per year. This zone is characterized by dry and hot weather.