The Thermal concept of the origin of monsoon was given by noted astronomer Halley. But there were some faults. Halley overlooked the Coriolis effect and the concept of the passing of latent heat through water vapour.
North-Eastern Zonal Council has eight states viz, Sikkim, Arunachal Pradesh, Meghalaya, Nagaland, Manipur, Mizoram, Tripura, Assam. Taking states and UTs together, the Northern zonal council has the maximum number of states and UT.
An avalanche is a sudden flow of snow down a slope, such as a mountainside. The first statement is correct because Himalayan range experiences more avalanches than any other place on Earth. Second statement is also correct because snowmobile leads to to avalanches if slab is not well anchored to the ground, leading to severe avalanche conditions.