Problem: No definite relation exists between the annual rings of growth and the amount of sapwood. Within the same species the cross-sectional area of the sapwood is very roughly proportional to the size of the crown of the tree. If the rings are narrow, more of them are required than where they are wide. As the tree gets larger, the sapwood must necessarily become thinner or increase materially in volume. Sapwood is thicker in the upper portion of the trunk of a tree than near the base, because the age and the diameter of the upper sections are less.
What part of a tree is the cross-sectional area of the sapwood approximately proportional to?
The answer is the following: crown

Problem: Though there is no doubt that the demographic crisis of the 14th century caused a dramatic fall in production and commerce in absolute terms, there has been a vigorous historical debate over whether the decline was greater than the fall in population. While the older orthodoxy held that the artistic output of the Renaissance was a result of greater opulence, more recent studies have suggested that there might have been a so-called 'depression of the Renaissance'. In spite of convincing arguments for the case, the statistical evidence is simply too incomplete for a definite conclusion to be made.
What type of evidence is too incomplete for a decision to be made between the two theories of the Renaissance?
The answer is the following: statistical

Problem: Protestantism is a form of Christian faith and practice which originated with the Protestant Reformation,[a] a movement against what its followers considered to be errors in the Roman Catholic Church. It is one of the three major divisions of Christendom, together with Roman Catholicism and Eastern Orthodoxy. Anglicanism is sometimes considered to be independent from Protestantism.[b] The term derives from the letter of protestation from Lutheran princes in 1529 against an edict condemning the teachings of Martin Luther as heretical.
Other than Protestantism, what are the other two divisions of Christianity?
The answer is the following: Roman Catholicism and Eastern Orthodoxy

Problem: 1 STOBAR carrier: Admiral Flota Sovetskovo Soyuza Kuznetsov: 55,000 tonne Admiral Kuznetsov-class STOBAR aircraft carrier. Launched in 1985 as Tbilisi, renamed and operational from 1995. Without catapults she can launch and recover lightly fueled naval fighters for air defense or anti-ship missions but not heavy conventional bombing strikes.[citation needed] Officially designated an aircraft carrying cruiser, she is unique in carrying a heavy cruiser's complement of defensive weapons and large P-700 Granit offensive missiles. The P-700 systems will be removed in the coming refit to enlarge her below decks aviation facilities as well as upgrading her defensive systems.
When was Admiral Flota Sovetskovo Soyuza Kuznetsov first launched?
The answer is the following:
in 1985