Answer:
Helium
Explanation:
The sun produces energy by fusing hydrogen atoms into helium atoms. This is a nuclear fusion that occurs at the suns core.
These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres
<u>Soviet Union in Russia used to be a communist country. When the USSR collapsed these early reforms failed to revive the increasingly-stagnant Soviet economy, with productivity growth falling below zero by the early 1980s. This ongoing poor economic performance led to a more radical set of reforms under the leadership of Mikhail Gorbachev. So after they collapsed things go bigger and better, and is leader to almost pure market, but is mixed today.</u>
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Property rights. The rapid growth of cities has led to government transfers of rural land to urban and industrial uses. Inadequate compensation to farmers whose property rights have been poorly defined has fueled growing civil unrest, while urban leaseholders seek to strengthen their new property rights.
Property tax implementation. Recent tax reform has reduced local government revenues and prompted local officials to rely on land sales receipts, fees, and off-budget revenues to finance government expenditures. China’s government is seeking to implement a property tax as a local revenue source to take advantage of the rapid growth of the real estate market.
Farmland preservation. The large amount of land removed from agricultural production by the complex forces of urbanization has exacerbated concerns about farmland preservation, especially related to food security.
Urban planning and development. Rapid urbanization has also resulted in increased urban poverty, housing affordability problems, inequality between urban and rural population groups, regional disparities, and other social and economic challenges. China’s urban planning practices are in need of reform to better reflect market forces and economic behavior.
Environmental sustainability. China’s economic and demographic changes over the past 30 years have been associated with severe environmental degradation. With rapid urbanization forecast over the next decade, there is growing consensus that China must find a more sustainable development model. More sustainable cities are integral to any low-carbon development trajectory.
