Answer: A: Its fertile oases enabled farmers to grow enough food for themselves and for sale.
Explanation: The Arabia region is a region located within the Arabian desert. A desert is an area of extreme heat, often dry weather condition with barren lands that cannot support agriculture and food production. An oases on the other hand is a region of luscious, cultivate-able land within a desert.
Food is one of the most important basic needs of man and hardly can anyone survive without food for more than twenty days. Hence, the presence of oases within the otherwise dry environment of the Arabia region is a major protection against death from hunger.
Taking a closer look at other options, none of them guarantees food supply and income to the Arabia region unlike food production in oases. Hence, the fertile oases is really the most important factor that serves as protection in the region's history.
Correct option: A
Answer:
B. Living organisms use matter and energy for their life processes
Inference is d. An observation is something you sense through taste,touch,smell, hear, and see
Aplastic anemia refers to a disorder that takes place when the body loses the tendency to generate enough amount of new blood cells. Aplastic anemia is a rare and serious disorder that can develop or arise at any age. In the condition, the person becomes fatigued and possess a greater threat of developing infections and uncontrolled bleeding.
Thus, in the given case, the nurse should appoint a roommate who is free from any kind of infectious disease or any other thing, which can stimulate an infection.
