d) Ralsed arm of a pile driver 19. Which is referred to as the \"central science

Question

d) Ralsed arm of a pile driver 19. Which is referred to as the "central science"? a) Physics b) Chemistry c) Astronomy e) Biology Which are signs of "Global warming"? a) Average temperatures have climb. b) Arctic ice is rapidly disappearing. c) The rate of warming is increasing d) Glaciers snows are rapidly melting. e) All of the above 20. 21. Sodium Chloride is also called a) Table salt b) Pepper c) Sage d) Nutmeg Which one is not a chemical compound? a) Nitrogen b) Carbon dioxide Which is a chemical change? a) Patina forming on copper b) Melting c) Sublimation 22. c) Sulfur dioxide d) Calcium fluoride 23. d) Dissolving 24. Which one is a cooling process? al) Photosynthesis b) Evaporation c) Condensation d) Dissolving 25. Which happens when a substance changes from a solid to a liquid? a) Melting b) Freezing c) Evaporation d) Condensation

Explanation / Answer

19) option b- chemistry

chemistry is called central science because of its role in connecting the physical sciences. chemistry with life sciences and applied sciences such as medicine and engineering

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