<span>Subsistence farming involves farmers growing just enough food that will be adequate for them and their families. So no surplus is farmed for sale. The Green Revolution allowed larger crop yield for farmers by introducing resistance strains, fertilizers and pesticides. As you can imagine, the wide spread use caused a very negative impact on the environment. Subsistence farming was basically revamped by the Green Revolution to allow surplus be produced for sale in developing nations.</span>
Answer:
Gentrification.
Explanation:
Gentrification is the renewal and rebuilding of the urban environment, which takes place when wealthier middle-class people move to declining areas, displacing the lower-class people there. As a result of gentrification, the average family income in the community increases and the number of members decreases. This is believed to be due to the departure of poorer residents who are unable to pay the increased rent and other real estate and land taxes. Old industrial buildings are often converted into dwellings and shops. In addition, new stores and service facilities are moving to the area, serving a wider customer base. This in turn increases the attractiveness of the region for more affluent immigrants and reduces accessibility for the poorer. This process is often made possible by government-funded investments to improve local infrastructure, mortgages for poor and first-time home buyers, and financial bonuses for owners of dilapidated houses. Following the implementation of these economic measures, crime in the area tends to decrease and real estate prices and tax revenues rise.
Answer:
Option (1)
False
Explanation:
The mid-oceanic ridge is one of the main features in the divergent plate boundary. Seafloor spreading takes place along this ridge, where the lithosphere becomes thin because of the uprising magma. The magma erupts at the surface forming a ridge which is commonly known as the mid-oceanic ridge.
As the magma melts at this ridge due to the decompression process, it solidifies and forms young basaltic igneous rocks. These are geologically the youngest rocks. With the increasing distance right from the mid-oceanic ridge, the age of the rocks increases.
Thus, the correct answer is option (1).
At this mid-oceanic ridge, when the magma erupts at the seafloor, it is comprised of magnetic minerals, which shows a specific pattern in the orientation of the earth's magnetic polarity. This forms alternate stripes, that starts from the mid-oceanic ridge and eventually expand outward. This pattern of earth's magnetic polarity is found in all the mid-oceanic ridges on earth.
Hence the given statement is false.
