The correct answer is - A. replacing natural vegetation with cultivated crops.
The natural vegetation is perfectly adapted to a certain environment, and it is also able to keep the soil tight with its roots, so the erosion is minimal.
When the natural vegetation is replaced by cultivated crops, than a problem occurs in the erosion of the soil. That is because the cultivated crops, in general, do not have root systems that are as strong and widespread as the natural vegetation, thus the soil becomes loosened up, so it is much easier to be eroded.
Answer:
market...planned
Explanation:
The mixed economy types are economy types that have strong elements from both the market economies, and the planned economies. Usually, this type of economy has developed from planned economy type, but because of adaptations in order for the economy to progress and develop, lot of the elements of the market economy has been implemented as well. This results in an economy where the government is still holding onto the most important natural resources in order to provide economic security, while the private sector is also thriving and develops very well without being limited by the government, but instead having it as an economic partner. A perfect example of this is China.
Answer: D) slaves from the Americas were sold in Africa in exchange for finished goods
Explanation:
Answer: Eradication
Coca eradication is an example of a strategy promoted by the United States government in 1961 as part of its "War on Drugs." It consists of eliminating the cultivation of coca, the drug crop whose leaves are used in the manufacture of cocaine.
Answer:
The relationship between the warming of the earth’s northern latitude and ice is a practical example of a positive feedback on the earth system.
Explanation:
A positive feedback is a process that brings about an increase in the process of interaction in the earth activities The warming of the northern latitude which is responsible for generating more heat through sunlight with time, usually results in an increase in the melting of ice bodies in the ocean by movement. This activity is regarded as positive because it is associated with an increase in the process. This process is directly proportional to the exchange activities that takes place and often leads to an equilibrium in the earth system.
