Answer: (1) It is the long-cherished wish of mountaineering enthusiasts all over the world to climb Mount A and overlook the magnificent mountains and rivers. Practice shows that 4-6.

(1) The climate of Mount Everest is mainly divided into rainy season and dry season. Summer is the rainy season with heavy rainfall. Blizzard is easy to cause avalanches, which is not conducive to mountaineering activities. At this time, the rainy season in Everest has not yet arrived, and winter has passed, which is relatively safe.

(2) Bay of Bengal; It belongs to monsoon climate zone, with concentrated precipitation and great seasonal and interannual variation. Typhoon (or hurricane) brings a lot of precipitation; Located at the mouth of the river, the upper reaches of the river have a large amount of water; Low terrain and poor drainage; In addition, it is also affected by storm surge and bay shape.