Question: During the Cenozoic era, specifically about 25 million years ago during the Miocene and Pliocene epochs, the continental climate became favorable to the evolution of grasslands. Existing forest biomes declined and grasslands became much more widespread. The grasslands provided a new niche for mammals, including many ungulates and glires, that switched from browsing diets to grazing diets. Traditionally, the spread of grasslands and the development of grazers have been strongly linked. However, an examination of mammalian teeth suggests that it is the open, gritty habitat and not the grass itself which is linked to diet changes in mammals, giving rise to the "grit, not grass" hypothesis.
Is there an answer to this question: How many years ago did the Cenozoic era start?

Answer: unanswerable

Question: The 1960s were less successful for the club, with Real Madrid monopolising La Liga. The completion of the Camp Nou, finished in 1957, meant the club had little money to spend on new players. The 1960s saw the emergence of Josep Maria Fuste and Carles Rexach, and the club won the Copa del Generalisimo in 1963 and the Fairs Cup in 1966. Barcelona restored some pride by beating Real Madrid 10 in the 1968 Copa del Generalisimo final at the Bernabeu in front of Franco, with coach Salvador Artigas, a former republican pilot in the civil war. With the end of Franco's dictatorship in 1974, the club changed its official name back to Futbol Club Barcelona and reverted the crest to its original design, including the original letters once again.
Is there an answer to this question: What competition did Barcelona win in 1966?

Answer: Fairs Cup

Question: Certain bacteria form close spatial associations that are essential for their survival. One such mutualistic association, called interspecies hydrogen transfer, occurs between clusters of anaerobic bacteria that consume organic acids, such as butyric acid or propionic acid, and produce hydrogen, and methanogenic Archaea that consume hydrogen. The bacteria in this association are unable to consume the organic acids as this reaction produces hydrogen that accumulates in their surroundings. Only the intimate association with the hydrogen-consuming Archaea keeps the hydrogen concentration low enough to allow the bacteria to grow.
Is there an answer to this question: What kind of bacteria can form interspecies hydrogen transfer?

Answer: anaerobic bacteria

Question: A large number of Bell's writings, personal correspondence, notebooks, papers and other documents reside at both the United States Library of Congress Manuscript Division (as the Alexander Graham Bell Family Papers), and at the Alexander Graham Bell Institute, Cape Breton University, Nova Scotia; major portions of which are available for online viewing.
Is there an answer to this question: In what university is the Alexander Graham Bell Institute?

Answer:
Cape Breton University