Problem: Given the following passage "The fossil record indicates that birds are the last surviving dinosaurs, having evolved from feathered ancestors within the theropod group of saurischian dinosaurs. True birds first appeared during the Cretaceous period, around 100 million years ago. DNA-based evidence finds that birds diversified dramatically around the time of the CretaceousPaleogene extinction event that killed off all other dinosaurs. Birds in South America survived this event and then migrated to other parts of the world via multiple land bridges while diversifying during periods of global cooling. Primitive bird-like dinosaurs that lie outside class Aves proper, in the broader group Avialae, have been found dating back to the mid-Jurassic period. Many of these early "stem-birds", such as Archaeopteryx, were not yet capable of fully powered flight, and many retained primitive characteristics like toothy jaws in place of beaks, and long bony tails.", answer the following question. Note that the answer is present within the text. Question: What gives us an understanding of the timeline that birds evolved by?

A: DNA-based evidence

Problem: Given the following passage "Over the years, the Mughals began to have internal disputes which greatly distracted them at times. The Mughal Empire continued to weaken, and with the decline of the Mughal Empire in the 18th century, Rajputana came under the suzerainty of the Marathas. The Marathas, who were Hindus from the state of what is now Maharashtra, ruled Rajputana for most of the eighteenth century. The Maratha Empire, which had replaced the Mughal Empire as the overlord of the subcontinent, was finally replaced by the British Empire in 1818.", answer the following question. Note that the answer is present within the text. Question: For how long have the Mughlas declined?

A: years

Problem: Given the following passage "The Cubs had high expectations in 2002, but the squad played poorly. On July 5, 2002 the Cubs promoted assistant general manager and player personnel director Jim Hendry to the General Manager position. The club responded by hiring Dusty Baker and by making some major moves in '03. Most notably, they traded with the Pittsburgh Pirates for outfielder Kenny Lofton and third baseman Aramis Ramirez, and rode dominant pitching, led by Kerry Wood and Mark Prior, as the Cubs led the division down the stretch.", answer the following question. Note that the answer is present within the text. Question: what team is mentioned last

A: Cubs

Problem: Given the following passage "Though researchers generally believe that sexual orientation is not determined by any one factor but by a combination of genetic, hormonal, and environmental influences, with biological factors involving a complex interplay of genetic factors and the early uterine environment, they favor biological models for the cause. They believe that sexual orientation is not a choice, and some of them believe that it is established at conception. That is, individuals do not choose to be homosexual, heterosexual, bisexual, or asexual. While current scientific investigation usually seeks to find biological explanations for the adoption of a particular sexual orientation, there are yet no replicated scientific studies supporting any specific biological etiology for sexual orientation. However, scientific studies have found a number of statistical biological differences between gay people and heterosexuals, which may result from the same underlying cause as sexual orientation itself.", answer the following question. Note that the answer is present within the text. Question: What supports the idea that the sexual orientation is biological?

A:
statistical biological differences between gay people and heterosexuals