Problem: The oldest evidence of burial customs in the Horn of Africa comes from cemeteries in Somalia dating back to 4th millennium BC. The stone implements from the Jalelo site in northern Somalia are said to be the most important link in evidence of the universality in palaeolithic times between the East and the West.
In what geographic part of Somalia were important paleolithic stone tools found?
The answer is the following: northern

Problem: The National History Museum of Montevideo is located in the historical residence of General Fructuoso Rivera. It exhibits artifacts related to the history of Uruguay. In a process begun in 1998, the National Museum of Natural History (1837) and the National Museum of Anthropology (1981), merged in 2001, becoming the National Museum of Natural History and Anthropology. In July 2009, the two institutions again became independent. The Historical Museum has annexed eight historical houses in the city, five of which are located in the Ciudad Vieja. One of them, on the same block with the main building, is the historic residence of Antonio Montero, which houses the Museo Romantico.
How many houses has the Historical Museum annexed?
The answer is the following: eight

Problem: The city's main theatres are the Theatre Royal (1,315 capacity), its Drum Theatre (200 capacity), and its production and creative learning centre, The TR2. The Plymouth Pavilions has multiple uses for the city staging music concerts, basketball matches and stand-up comedy. There are also three cinemas: Reel Cinema at Derrys Cross, Plymouth Arts Centre at Looe Street and a Vue cinema at the Barbican Leisure Park. The Plymouth City Museum and Art Gallery is operated by Plymouth City Council allowing free admission it has six galleries. The Plymouth Athenaeum, which includes a local interest library, is a society dedicated to the promotion of learning in the fields of science, technology, literature and art. From 1961 to 2009 it also housed a theatre.
What is the cost of admission to the Plymouth City Museum and Art Gallery?
The answer is the following: free

Problem: Endemic species can be threatened with extinction through the process of genetic pollution, i.e. uncontrolled hybridization, introgression and genetic swamping. Genetic pollution leads to homogenization or replacement of local genomes as a result of either a numerical and/or fitness advantage of an introduced species. Hybridization and introgression are side-effects of introduction and invasion. These phenomena can be especially detrimental to rare species that come into contact with more abundant ones. The abundant species can interbreed with the rare species, swamping its gene pool. This problem is not always apparent from morphological (outward appearance) observations alone. Some degree of gene flow is normal adaptation, and not all gene and genotype constellations can be preserved. However, hybridization with or without introgression may, nevertheless, threaten a rare species' existence.
What behavior causes swamping of a gene pool?
The answer is the following:
The abundant species can interbreed with the rare species