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:
Behavior modification is an effective way of correcting
various behavior problems. This type of technique may tend to fail if it is
applied inconsistently. The type of bully that is more open to behavior
modification is the classroom type of bully, because it requires a step-by-step
modification in order to encourage the students to act inappropriately and also
punishments to prevent the repetitive negative behavior; the fewer the
population the higher the possibility of the effectiveness of the process.
When modern humans arose, archaic humans disappeared worldwide most humans that arose that were modern archaic humans dissapeared which was strange to <span>paleoanthropologists.
Hoped this helped happy studying</span>
The answer is: self-administration behavior in animals
Because of this similarities, we can conclude that some behaviors are wired in all living beings (including humans and animals) in order to help ensure in our survival.
For example, both animals and humans have the tendency to form a group. We tend to do this because our suitability tend to be higher if we live in a group, where we have other people that we can depend on to cover our weaknesses.
