Adding examples.txt file.

examples.txt

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+ What is the primary gas responsible for the Earth's greenhouse effect?
+
+A) Oxygen
+B) Carbon dioxide
+C) Hydrogen
+D) Nitrogen
+E) Methane
+
+Correct Answer: B) Carbon dioxide
+----------------------
+ What is the process by which plants make their own food using sunlight?
+
+A) Respiration
+B) Photosynthesis
+C) Fermentation
+D) Digestion
+E) Transpiration
+
+Correct Answer: B) Photosynthesis
+----------------------
+
+What is the chemical symbol for the element gold?
+
+A) G
+B) Au
+C) Ag
+D) Go
+E) Gl
+
+Correct Answer: B) Au
+
+----------------------
+
+What is the fundamental unit of life, capable of carrying out all the functions essential for living organisms?
+
+A) Cell
+B) Atom
+C) Molecule
+D) Gene
+E) Tissue
+
+Correct Answer: A) Cell
+
+----------------------
+
+Which planet is often referred to as the "Red Planet" due to its reddish appearance?
+
+A) Venus
+B) Jupiter
+C) Mars
+D) Mercury
+E) Saturn
+
+Correct Answer: C) Mars