Everything in the world is made up of atoms and molecules.
举一反三
- Which of the following statements best describes a laser A: A device for stimulating atoms and molecules to emit light. B: An atom in a high-energy state. C: A technique for destroying atoms or molecules. D: An instrument for measuring light waves.
- The world we live is made up of matter.
- 中国大学MOOC: Water i________ a liquid made up of molecules of hydrogen and oxygen in the ratio of 2 to 1.
- Scientists figured out that human bodies are basically made of（） A: hydrogen, carbon, nitrogen, and oxygen atoms B: water vapor, ammonia, carbon dioxide, methane and hydrogen C: biomolecules and water D: evolutionary molecules
- Complete the sentences with the correct answers . The world _____ we live is made up of matter．