Answer: Agricultural development has the potential to improve African economies but requires extensive water supplies. These statistics from the Water Systems Analysis Group at the Institute for the Study of Earth, Oceans, and Space at the University of New Hampshire reveal the urgent need for sustainable agricultural development:
About 64 percent of Africans rely on water that is limited and highly variable;
Croplands inhabit the driest regions of Africa where some 40 percent of the irrigated land is unsustainable;
Roughly 25 percent of Africa’s population suffers from water stress;
Nearly 13 percent of the population in Africa experiences drought-related stress once each generation.
Another aspect of water-related stress is the relationship between water, soil, and agriculture. Pedro Sanchez of the Earth Institute at Columbia University says 96 percent of agriculture in Africa is rain-fed, but soil nutrient depletion is a more pressing problem than drought in sub-Saharan Africa. Development of soil nutrients as opposed to only allocation of water resources to supply agricultural production is the most effective means to relieve agricultural water stress in the long-term, Sanchez says.
Explanation:
Answer:
An excise tax applies to specific products.
Explanation:
This law violated the two amendments 13th and 14th. In the 13th <em>"badge of servitude"</em>, and in the 14th <em>"Constitution is color-blind, and neither knows nor tolerates classes among citizens."</em>
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Answer:
All the answers are correct because research is multifaceted
Explanation:
While doing population studies, it is important to understand the population and they demographic, age, sex, location etc. This could have incredible effects on comparative studies.
It is also important to maintain an open line of communication to give instructions and follow up on the persons in the event that this kind of data is required. But like with population study the error that often comes into play is the element of human dishonesty. By keeping an open line of communication, the provisions can be made to keep this under check.
Finally, making sure that all the participants understand what is being asked of them is key to the open line of communication as not to create any misgivings or misunderstanding.
