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Answer: Methane
Methane is the main component of natural gas, accounting for about 70-90% of its content.
Answer: Heart
The heart is part of the circulatory system, not the digestive system, which includes the stomach, large intestine and esophagus.
Answer: Atom
The atom is the smallest unit of an element, consisting of protons, neutrons and electrons.
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Answer: Pancreas
The pancreas produces insulin, which helps regulate blood sugar levels.
Answer: Absorb sunlight
Chlorophyll is the green pigment in plants that absorbs sunlight, which is crucial for photosynthesis.
Answer: Transpiration
Transpiration is the process where water is absorbed by plant roots, transported through the plant and released as vapor through the leaves.
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Answer: Ionic bond
In ionic bonding, electrons are transferred from one atom to another, creating positive and negative ions that attract each other.
Answer: Oxygen
Oxygen is released during photosynthesis as a byproduct of the process by which plants convert sunlight, carbon dioxide and water into glucose.
Answer: Pump blood
The hearts primary function is to pump blood throughout the body, delivering oxygen and nutrients to tissues.
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Answer: Ag
Silver has the chemical symbol Ag, derived from the Latin word argentum.
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