Problem: In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored.
When was the fourth satellite for the BeiDou-1 system launched?
The answer is the following: February 2007

Problem: Currently, the rapid influx of northerners and immigrants from Latin America is steadily increasing ethnic and religious diversity: the number of Roman Catholics and Jews in the state has increased, as well as general religious diversity. The second-largest Protestant denomination in North Carolina after Baptist traditions is Methodism, which is strong in the northern Piedmont, especially in populous Guilford County. There are also a substantial number of Quakers in Guilford County and northeastern North Carolina. Many universities and colleges in the state have been founded on religious traditions, and some currently maintain that affiliation, including:
Religious diversity in North Carolina has generally what?
The answer is the following: increased

Problem: The infrared portion of the spectrum has several useful benefits for astronomers. Cold, dark molecular clouds of gas and dust in our galaxy will glow with radiated heat as they are irradiated by imbedded stars. Infrared can also be used to detect protostars before they begin to emit visible light. Stars emit a smaller portion of their energy in the infrared spectrum, so nearby cool objects such as planets can be more readily detected. (In the visible light spectrum, the glare from the star will drown out the reflected light from a planet.)
What can be detected via infrared prior to their emitting visible light?
The answer is the following: protostars

Problem: A new index was released on December 18, 2008. This so-called "statistical update" covered the period up to 2006 and was published without an accompanying Human Development Report. The update is relevant due to newly released estimates of purchasing power parities (PPP), implying substantial adjustments for many countries, resulting in changes in HDI values and, in many cases, HDI ranks.
What type of update was released on December 18, 2008?
The answer is the following:
statistical update