Which states in the United States are the best places to live?

California is the best place for immigrants to live.

California is a state on the Pacific coast of the western United States, and the state government is located in Sacramento. It borders Oregon to the north, Nevada and Arizona to the east, Mexico to the south and the Pacific Ocean to the west. It covers an area of 4110/3 square kilometers, and its name is taken from the name of a small island in Spanish legend.

There is Sequoia National Park in the northwest corner of California; There are Yosemite National Park and King's Canyon National Park in the hilly area on the western slope of the East Nevada Mountains. Death Valley National Park in the southeast, joshua tree national park. The world-famous "Hollywood" and "Silicon Valley" are both in this state.

The state flower is the golden poppy. The state bird is California valley quail. The state tree is California redwood. The state motto is "I found it".

20 16 in June, the data released by the California government in the United States showed that in 20 15, the total economic output of California had surpassed that of France and became the sixth largest economy in the world.

The geographical conditions of different States are very different: the southern desert area is dry, and the northern coastal areas often have floods due to too much rain and snow in winter. Less than 140 kilometers apart, there are Mount Whitney at an altitude of 44 18 meters and Death Valley at an altitude of 86 meters, which are the highest and lowest points in 48 States in the United States respectively. The coast is mountainous. The coastal mountains are 20-40 miles wide and 2000-8000 feet above sea level. The eastern part of the state, especially the southeast and northeast, is a desert. The Sierra Nevada is 430 miles west of this desert and 50-80 miles wide, which is higher than the Rocky Mountains. Lake Tahoe on the mountain straddles the border between California and Nevada, with an altitude of 6,225 feet. It is one of the scenic lakes. There are 1200 small lakes in the Sierra Nevada.

The central valley between the coastal mountains and the Sierra Nevada is a north-south valley, 450 miles long, accounting for 1/6 of the total area of California. It is the main producing area of fruits, vegetables, grains, milk, eggs, cattle and chickens in California. The Sacramento River in the valley flows from north to south, and the San Joaquin River in the south flows northward. The two rivers meet and flow westward into San Francisco Bay.

The state is dry in summer and sunny and rainy in winter. Affected by geographical conditions, the climate varies greatly. In summer, the temperature in the southeastern Colorado desert reaches 54℃, which is close to the highest temperature on the earth. In winter, the Sierra Nevada is as cold as the North Pole. But the temperature along the Pacific coast is generally not higher than 32℃ and not lower than 0℃. The average temperatures in Los Angeles and San Francisco are 18℃ and 14℃ respectively. The precipitation in the northwest is 4420 mm, the precipitation in the southeast of Colorado desert is 50 ~ 75 mm, and the annual precipitation in the central valley is between 200 ~ 500 mm.

California is located on the Pacific coast, where there are volcanoes, such as the active volcano in San hellens, and there are also major earthquakes. 1906 San Francisco earthquake, the city was completely destroyed. There are coastal mountains on the west coast of the United States and Sierra Nevada mountains inward. These mountains were formed by the collision between the North American continental plate and the North Pacific plate. It starts from the Gulf of California in the south, passes through downtown Los Angeles in the north, goes straight through the San Francisco Peninsula, and continues northward. This large fault line is called Santander fault. To the east of this line is the coastal mountain range, which rises, and to the west is the coast, which slides to the bottom of the Pacific Ocean. There is a vibration every 100 years, which makes this fault slide down. During the 1905 earthquake, the rock strata moved by 25 cm.

The American "Investigation Report Center" said in the report that the most serious land subsidence occurred in California in the summer of 20 14, at least in 50 years; It is predicted that the situation will continue to deteriorate in the summer of 20 15.

Scientists first discovered land subsidence in California in 1930s. It reached its peak in 1960s and was not contained until 1970s. This was mainly due to the completion of large-scale irrigation canal network construction in California, which diverted water from water-rich areas to the central valley and other areas, reducing the local dependence on groundwater.

In 20 12, Michelle Snead, a scientist from the Geological Survey, found that the subsidence along the San Joaquin River became more and more serious, and the speed was faster than that during the drought from 1987 to 1992. The land subsidence rate in the most serious area in 20 12 years reached about 30 cm. Snead and other researchers concluded that after 20 12, the settlement rate may double to 60 cm per year.

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