Answer:
Shifting cultivation is not included in commercial farming.
Explanation:
There are multiple types of farming, and that is prevailing more and more is commercial farming. This type of farming is characterized by large-scale production, with higher amounts produced in a smaller area, new types of high productivity seeds, use a lot of pesticides, being heavily mechanized, etc. The reason why this type of farming has developed and is becoming dominant is that there has been an exponential rise in food demand because of the growing global population and increase in consumption per capita.
Something that is not used in commercial farming is the shifting cultivation method. This method basically means that every season a new type of crop is planted, thus leaving the soil to recover naturally and restore nutrients needed for when the initial crops are planted again. The commercial farming doesn't use this method because it simply relies on using high amounts of fertilizers, so every season that soil is enriched with nutrients.
The tropics would expand.
Explanation:
With the global temperatures rising the Earth is projected to have multiple changes, climatic ones and even in the shape of the landmasses. Because of the rising global temperatures the ice at the poles is expected to melt, if not all than in solid amount, which in turn will rise the sea level.
Higher sea level will mean that there will be less land mass, but also that the land mass will be under bigger maritime influence when it comes to the climate. The ocean currents also are expected to gradually become dominated by warm ocean currents, while the cold ones will be much less and with much lesser global influence. That will cause expansion of the tropics, mostly toward north, as toward south there is little land mass, and such expansion will totally change the landscape, the habitats, the diversity and type of species present in certain areas.
Since you provide no options,
as a result of the health and social problems in Russia in 1990s and 2000s Russia reformed their public healthcare systems.
In 1996, the constitution of the Russian Federation provides their citizens with free healthcare under mandatory medical insurance
