What are informal and formal resources?

Bakit tanyag ang kabundukang himalayas sa mundo? What is a semester average? How do you break down the word flower into syllables? Ano ang mga halimbawa ng mga naturalisadong mamamayan? How do you spell bottle in Spanish? What does the name Cole mean in Hebrew? What kind of extra curricular activities does Duke university have? Should press releases be written in third person? What state in U.s. best for fine arts? What is math outlier? Which institute is best for industrial training in Chandigarh? What are the US Army rankings? What does disce verum laborem mean? Ano ang kasinghulugan ng pumapagaspas? When was Jet Airline Service started? What is the liqueur made of almonds that sounds like Amarillo? How do you write gabrielle in the Greek alphabet? Does the word tsuko mean anything in Japanese? What college degree requires a thesis? What does 'Arcanine' mean in Japanese?