Question: Question: "If decay would start, what are the inherent dangers?"  Context: "It is remarkable that the inner heartwood of old trees remains as sound as it usually does, since in many cases it is hundreds, and in a few instances thousands, of years old. Every broken limb or root, or deep wound from fire, insects, or falling timber, may afford an entrance for decay, which, once started, may penetrate to all parts of the trunk. The larvae of many insects bore into the trees and their tunnels remain indefinitely as sources of weakness. Whatever advantages, however, that sapwood may have in this connection are due solely to its relative age and position."  Answer:
Answer: may penetrate to all parts of the trunk

Question: Question: "Why might galvanization be used if zinc is more reactive than iron or steel?"  Context: "Zinc is more reactive than iron or steel and thus will attract almost all local oxidation until it completely corrodes away. A protective surface layer of oxide and carbonate (Zn5(OH)6(CO3)2) forms as the zinc corrodes. This protection lasts even after the zinc layer is scratched but degrades through time as the zinc corrodes away. The zinc is applied electrochemically or as molten zinc by hot-dip galvanizing or spraying. Galvanization is used on chain-link fencing, guard rails, suspension bridges, lightposts, metal roofs, heat exchangers, and car bodies."  Answer:
Answer: protection lasts even after the zinc layer is scratched

Question: Question: "What happened 20 years ago?"  Context: "Parisians tend to share the same movie-going trends as many of the world's global cities, with cinemas primarily dominated by Hollywood-generated film entertainment. French cinema comes a close second, with major directors (réalisateurs) such as Claude Lelouch, Jean-Luc Godard, and Luc Besson, and the more slapstick/popular genre with director Claude Zidi as an example. European and Asian films are also widely shown and appreciated. On 2 February 2000, Philippe Binant realised the first digital cinema projection in Europe, with the DLP CINEMA technology developed by Texas Instruments, in Paris."  Answer:
Answer:
Philippe Binant realised the first digital cinema projection in Europe