Water is made up of two __________ , namely oxygen and hydrogen.
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Answer: D. elements
Explanation
Oxygen and hydrogen are classified as chemical elements because they consist of only one type of atom. Water molecules are composed of these two fundamental elements chemically bonded together in a specific ratio. Option D is the correct choice because elements are the basic building blocks of chemical substances. A chemical element is a pure substance that cannot be broken down by chemical means. Every element is distinguished by the number of protons found in the nuclei of its atoms. The periodic table organizes all known chemical elements according to their atomic numbers and recurring properties.
Understanding chemical elements helps scientists explain how different substances interact and combine in nature. Water is essential for life on Earth and makes up a significant portion of living organisms. Basic chemistry knowledge allows students to comprehend molecular structures and fundamental biological processes daily. Section refers to a distinct part or portion of something rather than a fundamental chemical substance. Aspects represent particular features or details of a problem rather than physical building blocks. Solutions are homogeneous mixtures containing multiple substances rather than pure chemical constituents.
- Subject
- English
- Category
- English Grammar and Vocabulary
- Topic
- —
- Difficulty
- medium
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