Answer:
Uso de vehículos eléctricos y evitar el uso de combustibles fósiles.
Explicación:
Para preservar los bajos niveles de contaminación y mejorar la calidad del aire alcanzada en la cuarentena, reduzca el uso de combustibles fósiles que se utilizan para la producción de energía, industrias y vehículos. Los vehículos producen la mayor cantidad de dispositivos de dióxido de carbono que causa la contaminación del aire. Durante el cierre, hay menos cantidad de contaminación porque hay menos vehículos en las carreteras. Deberíamos utilizar vehículos que funcionen con electricidad porque no produce contaminación y, por lo tanto, se mejorará la calidad del aire.
Answer:
Most early cities developed in southern Mesopotamia because it had more fertile land.
Explanation:
A is not correct because Mesopotamia was poor in natural resources, it actually had just two primary ones, but those two were the most important at that time.
B is correct because the abundance of fertile land along the Tigris and Euphrates enabled the developement of societies, as the people were able to produce much more food than they needed and used it for trade to obtain other goods.
C is not correct because civilization was only able to develop because of the abundance of fertile land and water.
D is not correct because the natural borders don't provide conditions for the development of civilization, but just make it easier as they eliminate the threat of invasion.
Answer:
Green revolution, great increase in production of food grains (especially wheat and rice) that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The new varieties require large amounts of chemical fertilizers and pesticides to produce their high yields, raising concerns about cost and potentially harmful environmental effects. Poor farmers, unable to afford the fertilizers and pesticides, have often reaped even lower yields with these grains than with the older strains, which were better adapted to local conditions and had some resistance to pests and diseases. See also Norman Borlaug
Urban areas are characterized by high population density when compared to other areas
Areas that are located on the outskirts of cities or large urban areas but retain rural characteristics such as agricultural productions are generally considered as peri urban areas
