Problem: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "For administrative purposes, the Federal District is divided into 16 "delegaciones" or boroughs. While not fully equivalent to a municipality, the 16 boroughs have gained significant autonomy, and since 2000 their heads of government are elected directly by plurality (they were previously appointed by the head of government of the Federal District). Given that Mexico City is organized entirely as a Federal District, most of the city services are provided or organized by the Government of the Federal District and not by the boroughs themselves, while in the constituent states these services would be provided by the municipalities. The 16 boroughs of the Federal District with their 2010 populations are:"?

A: In 1995, how were the head of government for the boroughs chosen?

Problem: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "From the 1950s on, the students were also used for unpaid work at schools, where they cleaned and performed repairs. This practice has continued in the Russian Federation, where up to 21 days of the summer holidays is sometimes set aside for school works. By law, this is only allowed as part of specialized occupational training and with the students' and parents' permission, but those provisions are widely ignored. In 2012 there was an accident near city of Nalchik where a car killed several pupils cleaning up a highway shoulder during their "holiday work" as well as their teacher who was supervising them."?

A: who was the oldest victim?

Problem: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The Ecdysozoa are protostomes, named after the common trait of growth by moulting or ecdysis. The largest animal phylum belongs here, the Arthropoda, including insects, spiders, crabs, and their kin. All these organisms have a body divided into repeating segments, typically with paired appendages. Two smaller phyla, the Onychophora and Tardigrada, are close relatives of the arthropods and share these traits. The ecdysozoans also include the Nematoda or roundworms, perhaps the second largest animal phylum. Roundworms are typically microscopic, and occur in nearly every environment where there is water. A number are important parasites. Smaller phyla related to them are the Nematomorpha or horsehair worms, and the Kinorhyncha, Priapulida, and Loricifera. These groups have a reduced coelom, called a pseudocoelom."?

A: Some __ show a remarkable tolerance for hydrogen sulfide and anoxia

Problem: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "Wood is a heterogeneous, hygroscopic, cellular and anisotropic material. It consists of cells, and the cell walls are composed of micro-fibrils of cellulose (40% 50%) and hemicellulose (15% 25%) impregnated with lignin (15% 30%)."?

A:
Lignin makes up 15-30% of what structure?