Answer:
e.surfaces dramatically altered during the heavy bombardment
A reason why might China had a strong cultural and economic influence on Mongolia because the deserts and mountains in the west that were mostly impassible due to the limited long-range transportation options available, early China's civilizations were unaware that European civilizations existed prior to the development of the Silk Road. In this way, geography kept early China culturally and economically isolated from the rest the world. However, ancient Chinese civilizations were exposed to the sheep and cattle herders inhabiting the grasslands in the northwest, and the fishing cultures along the southeast coasts. These surrounding societies were both nomadic and illiterate; a fact which led ancient China to consider itself the most valuable and advanced civilization by comparison.
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<span>D. provide systematic irrigation.</span><span>
Agriculture Science is the science of crop production and its improvement. In Agriculture Science, scientists focus on research and development on various aspects of crop technology and production.
Crop improvements include:
1. Irrigation Management as a production technique
2. Minimizing the growth of pests
3. Transformation of raw products to end-consumer products
4. Prevention of adverse environmental effects (e.g. waste management and soil degradation)
5. Supply and demand for food in a global basis 6. Crop quantity and quality 7. Study of other fields of agriculture (e.g. soil science) </span>
