Answer:
Solar and geothermal energy are both considered renewable energy sources. ... Nuclear energy produces nuclear waste, while solar and geothermal energy do not produce a significant amount of waste.
The purpose was to test the idea that the complex molecules of life. in this case, amino acids. could have arisen on our young planet through simple, natural chemical reactions. The experiment was a success in that amino acids, the building blocks of life, were produced during the simulation.
Answer:
A. Cultivating crops that require less water
Explanation:
A sustainable agriculture practice is one that reduced the impact of that human activity on the environment.
A. Cultivating crops that require less water is certainly one sustainable practice because it respects the environment.
B, C and D answers are NOT sustainable practices and put in danger the reserves of water people will need to drink. On top of that, B and C would generate pollution for the transport.
Melanosis is any condition of unusual deposits of black pigment in body tissues or organs. Therefore, your correct answer would be letter choice A provided.
Answer:
Over the ages the tendency of crop improvement efforts has been to select varieties with traits that give the highest return, largely by concentrating on genetic strains that combine the most desirable traits. The resulting homogeneity and uniformity can offer substantial advantages in both the quantity and quality of crop harvested, but this same genetic homogeneity can also reflect greater susceptibility or pathogens. Thus it appears the more that agricultural selection disturbs the natural balance in favor of variety uniformity over large areas, the more vulnerable such varieties are to losses from epidemics. The increased risks presented by genetic selection and the increased cultivation of only a few selected cultivars are easily perceived. Chapters 1 and 2 of this reports focus on crop vulnerability, because it is a broadly recognized problem. The issue of genetic vulnerability, however, is only one of several important problems affecting the management of global genetic resources.
