Problem: Republic of the Congo:

In the early 1980s, rapidly rising oil revenues enabled the government to finance large-scale development projects with GDP growth averaging 5% annually, one of the highest rates in Africa. The government has mortgaged a substantial portion of its petroleum earnings, contributing to a shortage of revenues. January 12, 1994 devaluation of Franc Zone currencies by 50% resulted in inflation of 46% in 1994, but inflation has subsided since.

What contributed to an excess of revenues?
---
A: unanswerable

Problem: According to the 2000 edition of a popular physical anthropology textbook, forensic anthropologists are overwhelmingly in support of the idea of the basic biological reality of human races. Forensic physical anthropologist and professor George W. Gill has said that the idea that race is only skin deep "is simply not true, as any experienced forensic anthropologist will affirm" and "Many morphological features tend to follow geographic boundaries coinciding often with climatic zones. This is not surprising since the selective forces of climate are probably the primary forces of nature that have shaped human races with regard not only to skin color and hair form but also the underlying bony structures of the nose, cheekbones, etc. (For example, more prominent noses humidify air better.)" While he can see good arguments for both sides, the complete denial of the opposing evidence "seems to stem largely from socio-political motivation and not science at all". He also states that many biological anthropologists see races as real yet "not one introductory textbook of physical anthropology even presents that perspective as a possibility. In a case as flagrant as this, we are not dealing with science but rather with blatant, politically motivated censorship".
What does Gill think the complete denial of opposing evidence stems from?
---
Answer: socio-political motivation

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Annelids' cuticles are made of collagen fibers, usually in layers that spiral in alternating directions so that the fibers cross each other. These are secreted by the one-cell deep epidermis (outermost skin layer). A few marine annelids that live in tubes lack cuticles, but their tubes have a similar structure, and mucus-secreting glands in the epidermis protect their skins. Under the epidermis is the dermis, which is made of connective tissue, in other words a combination of cells and non-cellular materials such as collagen. Below this are two layers of muscles, which develop from the lining of the coelom (body cavity): circular muscles make a segment longer and slimmer when they contract, while under them are longitudinal muscles, usually four distinct strips, whose contractions make the segment shorter and fatter. Some annelids also have oblique internal muscles that connect the underside of the body to each side.
How are the layers arranged in annelids' cuticles?
A: spiral in alternating directions

Context and question: There is evidence of induced copper deficiency in those taking 100300 mg of zinc daily. A 2007 trial observed that elderly men taking 80 mg daily were hospitalized for urinary complications more often than those taking a placebo. The USDA RDA is 11 and 8 mg Zn/day for men and women, respectively. Levels of 100300 mg may interfere with the utilization of copper and iron or adversely affect cholesterol. Levels of zinc in excess of 500 ppm in soil interfere with the ability of plants to absorb other essential metals, such as iron and manganese. There is also a condition called the zinc shakes or "zinc chills" that can be induced by the inhalation of freshly formed zinc oxide formed during the welding of galvanized materials. Zinc is a common ingredient of denture cream which may contain between 17 and 38 mg of zinc per gram. There have been claims of disability, and even death, due to excessive use of these products.
What kind of superpowers were seen in men taking 80mg zinc a day?
Answer: unanswerable

Question: Some commentators have defined reverse discrimination as a policy or practice in which members of a majority are discriminated against in favor of a historically disadvantaged group or minority.[non-primary source needed] Many argue that reverse discrimination results from affirmative action policies and that these policies are just another form of discrimination no different from examples in the past. People like Ward Connerly assert that affirmative action requires the very discrimination it is seeking to eliminate. According to these opponents, this contradiction might make affirmative action counter-productive. One argument for reverse discrimination is the idea that affirmative action encourages mediocrity and incompetence. Job positions would not be offered to the applicants who are the most qualified, but to applicants with a special trait such as a certain race, ethnicity, or gender. For example, opponents say affirmative action causes unprepared applicants to be accepted in highly demanding educational institutions or jobs which result in eventual failure (see, for example, Richard Sander's study of affirmative action in Law School, bar exam and eventual performance at law firms). Other opponents say that affirmative action lowers the bar and so denies those who strive for excellence on their own merit and the sense of real achievement. Opponents of affirmative action suggest that merit should be the primary factor considered in applying for job positions, college, graduate school, etc.
Is there an answer to this question: What is a definition of discrimination?

Answer: unanswerable

Question: In the early Sumerian Uruk period, the primitive pictograms suggest that sheep, goats, cattle, and pigs were domesticated. They used oxen as their primary beasts of burden and donkeys or equids as their primary transport animal and "woollen clothing as well as rugs were made from the wool or hair of the animals. ... By the side of the house was an enclosed garden planted with trees and other plants; wheat and probably other cereals were sown in the fields, and the shaduf was already employed for the purpose of irrigation. Plants were also grown in pots or vases."
Is there an answer to this question: What animals were domesticated following the Uruk period?

Answer:
unanswerable