Which of These Statements Is True

question 56

Multiple Choice

Which of these statements is true?

• A) The compositions of both mixtures and pure substances are variable.
• B) The compositions of both mixtures and pure substances are fixed.
• C) The composition of mixtures is variable, and the composition of pure substances is fixed.
• D) The composition of mixtures is fixed, and the composition of pure substances is variable.
• E) The compositions of both mixtures and pure substances can be fixed or variable.

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Definitions:

Primary And Secondary

Refers to the first and second stages or levels in processes, industries, or education, often indicating a primary source or activity and its subsequent development or refinement.

Sewage Treatment

Sewage treatment involves the process of removing contaminants from wastewater, primarily from household sewage, to produce an effluent that is safe enough to release into the environment or to be reused.

Water Pollution

The contamination of water bodies (e.g., lakes, rivers, oceans, aquifers) with pollutants that degrade water quality and ecosystem health.

Investing Activities

Part of the cash flow statement that shows the cash spent on and generated from long-term asset operations and investments.