Answer all questions d) Ralsed arm otaple driver 19 Which is referred to as the

Question

Answer all questions d) Ralsed arm otaple driver 19 Which is referred to as the "central science"? a) Physics b) Chemistry c) Astronomy e) Biology 20. 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 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 d) Dissolving 22. c) Sulfur dioxide d) Calcium fluoride 23. 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

As per you need , only the answers are provided without explanation

19) b

20 ) e

21) a

22) a

23) a

24) b

25) a

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