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:
they are easier to manipulate and trick
Both the endocrine glands and the nervous system is a major regulating systems of the body. the first is the anterior pituitary, the second one is the adrenal gland, the third one is pancreatic islet, the fourth one is the thyroid gland, the fifth one is the posterior pituitary and the sixth is the parathyroid gland.
Answer:
Teratogens.
Explanation:
A teratogen is an agent that disturbs, during pregnancy, the development of the fetus or the embryo. Given that, in the exercise, the doctor suggests that the problem may have been a prenatal exposure, the best guess is a teratogen, which might include any maternal infections, drugs, chemicals or, in rare cases, even radiation. There are many things a teratogen might cause in later stages, such as Jill's problems of learning disability.
North Korea is a communist country
