All mineral water is ‘natural’, coming straight from a natural spring.
举一反三
- Before ____________of synthetic dyes, yarns were often colored by dyes obtained from natural vegetable and mineral matter.
- What are the most important natural resources in Canada A: [A] Forest resources. B: [B] Mineral resources. C: [C] Water resources. D: [D] Agricultural resources.
- Organic chemicals mainly come from oil, natural gas, and . A: metal B: air C: water D: coal
- Electricity, gas and water were considered to be natural ______.
- Minerals,timber, land, and water are natural ______(s).