Problem: Please answer a question about the following article about Bird migration:
Birds need to alter their metabolism in order to meet the demands of migration. The storage of energy through the accumulation of fat and the control of sleep in nocturnal migrants require special physiological adaptations. In addition, the feathers of a bird suffer from wear-and-tear and require to be molted. The timing of this molt - usually once a year but sometimes twice - varies with some species molting prior to moving to their winter grounds and others molting prior to returning to their breeding grounds. Apart from physiological adaptations, migration sometimes requires behavioural changes such as flying in flocks to reduce the energy used in migration or the risk of predation.
Why do birds need to molt?
A: feathers of a bird suffer from wear-and-tear

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On 17 November 1989, The Sun headlined a page 2 news story titled "STRAIGHT SEX CANNOT GIVE YOU AIDS OFFICIAL." The Sun favourably cited the opinions of Lord Kilbracken, a member of the All Parliamentary Group on AIDS. Lord Kilbracken said that only one person out of the 2,372 individuals with HIV/AIDS mentioned in a specific Department of Health report was not a member of a "high risk group", such as homosexuals and recreational drug users. The Sun also ran an editorial further arguing that "At last the truth can be told... the risk of catching AIDS if you are heterosexual is "statistically invisible". In other words, impossible. So now we know everything else is homosexual propaganda." Although many other British press services covered Lord Kilbracken's public comments, none of them made the argument that the Sun did in its editorial and none of them presented Lord Kilbracken's ideas without context or criticism.

How did other news outlets report on Lord Kilbracken's words?
Answer: none of them presented Lord Kilbracken's ideas without context or criticism

Problem: In 1997, the charity introduced a U.S. Libraries initiative with a goal of "ensuring that if you can get to a public library, you can reach the internet". Only 35% of the world's population has access to the Internet. The foundation has given grants, installed computers and software, and provided training and technical support in partnership with public libraries nationwide in an effort to increase access and knowledge. Helping provide access and training for these resources, this foundation helps move public libraries into the digital age.
what have the grants provided public libraries
The answer is the following: The foundation has given grants, installed computers and software, and provided training and technical support in partnership with public libraries nationwide

After the decline of Aksum, the Eritrean highlands were under the domain of Bahr Negash ruled by the Bahr Negus. The area was then known as Ma'ikele Bahr ("between the seas/rivers," i.e. the land between the Red Sea and the Mereb river). It was later renamed under Emperor Zara Yaqob as the domain of the Bahr Negash, the Medri Bahri ("Sea land" in Tingrinya, although it included some areas like Shire on the other side of the Mereb, today in Ethiopia). With its capital at Debarwa, the state's main provinces were Hamasien, Serae and Akele Guzai.
What is the English translation of Medri Bahri?
Sea land

Input: Antenna (radio)
Reflection of the original signal also occurs when it hits an extended conductive surface, in a fashion similar to a mirror. This effect can also be used to increase signal through the use of a reflector, normally placed behind the active element and spaced so the reflected signal reaches the element in-phase. Generally the reflector will remain highly reflective even if it is not solid; gaps less than 110 generally have little effect on the outcome. For this reason, reflectors often take the form of wire meshes or rows of passive elements, which makes them lighter and less subject to wind. The parabolic reflector is perhaps the best known example of a reflector-based antenna, which has an effective area far greater than the active element alone.

What effect would the use of a reflector have on a signal?
Output: increase

Problem: Please answer a question about the following article about Seven Years%27 War:
In early 1758, Frederick launched an invasion of Moravia, and laid siege to Olmutz (now Olomouc, Czech Republic). Following an Austrian victory at the Battle of Domstadtl that wiped out a supply convoy destined for Olmutz, Frederick broke off the siege and withdrew from Moravia. It marked the end of his final attempt to launch a major invasion of Austrian territory. East Prussia had been occupied by Russian forces over the winter and would remain under their control until 1762, although Frederick did not see the Russians as an immediate threat and instead entertained hopes of first fighting a decisive battle against Austria that would knock them out of the war.
Where did Frederick invade in 1758
A:
Frederick launched an invasion of Moravia