Quick Question: Passage: An electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration.

Question: Based on this passage, what is the final electron acceptor of the electron transport system?
My answer: To answer the above question, the relevant sentence is: The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration. The answer is molecular oxygen.

Quick Question: Context: "Be Still" is a song by American recording artist Kelly Clarkson, from her third studio album, My December (2007). Written by Kelly Clarkson and Aben Eubanks, and produced by David Kahne, "Be Still" is an acoustic folk blues ballad set moderately slow acoustic and electric guitars. Clarkson wrote the song as an introspective ballad based on her exhaustive experience from touring and promoting her second studio album, Breakaway (2004). Inspired by one of her favorite Bible verses, Psalm 46: 10 ("Be still, and know that I ( God) am here" ), the song is about taking a break from everyday things and taking a moment to appreciate one life.

Question: who wrote the song be still and know i am?
My answer: To answer this question, we should know that: Written by Kelly Clarkson and Aben Eubanks, and produced by David Kahne, "Be Still" is an acoustic folk blues ballad set moderately slow acoustic and electric guitars. The answer is Kelly Clarkson and Aben Eubanks.

Quick Question: Its drainage basin and some of its usually dry tributaries extend into New Mexico. It flows generally southeast from Dawson County through Ballinger, Marble Falls, Austin, Bastrop, Smithville, La Grange, Columbus, Wharton, and Bay City before emptying into the Gulf of Mexico at Matagorda Bay.

Answer this question: where does the colorado river enter the gulf of mexico?
My answer:
The relevant information is: It flows generally southeast from Dawson County through Ballinger, Marble Falls, Austin, Bastrop, Smithville, La Grange, Columbus, Wharton, and Bay City before emptying into the Gulf of Mexico at Matagorda Bay. The answer is Matagorda Bay.