Subject :NSO Class : Class 5
Subject :NSO Class : Class 4
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 4
Pinki made lemonade by dissolving lemon juice and little sugar in water.
Select the option which correctly classifies different substances into solute, solvent end solution.
| Solute | Solvent | Solution | |
| A | Lemon juice | Water and sugar | Lemonade |
| B | Water | Lemon juice and sugar | Lemonade |
| C | Lemonade | Lemon juice | Water and sugar |
| D | Lemon juice and sugar | Water | Lemonade |
Ans 1: (Master Answer)
Class : Class 1
D
Solution is the liquid mixture in which the minor component (the solute) is dissolved in the major component (the solvent). So, when Pinki made lemonade by dissolving lemon juice and little sugar in water, it means lemon juice and sugar are the solutes, Water is the solvent, and lemonade is the solution.
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 2
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Subject :NSO Class : Class 5
Ans 2:
Class : Class 6
Though building dams are far higher risks to the environment, I think the answer is (B) i.e. dumping wastes.
Land, water, soil and air pollution are primarily caused by illegal dumping. The harmful chemicals in the waste affect the physical environment and the waterways by contaminating groundwater and soil.
Moreover, you didn't mention in the question, that dumping wastes mean dumping biodegradable wastes....
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 2
