Chemistry: What is chemistry?
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Chemistry examines what matter is made of and how it behaves.
It also studies energy changes accompanying chemical processes.
Practice Pakistan questions with answers and explanations.
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Chemistry examines what matter is made of and how it behaves.
It also studies energy changes accompanying chemical processes.
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A sapling grows into a tree.
A child grows into an adult.
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A constitution governs a country.
Rules govern a game.
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Apple, mango, and orange are fruits.
Carrot is a root vegetable.
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The numbers 16, 25, and 36 are perfect squares.
The number 20 is not.
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Cube, sphere, and cylinder are three-dimensional solids.
A triangle is two-dimensional.
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Meter, centimeter, and kilometer measure length.
Kilogram measures mass.
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The first three pairs link professions to workplaces.
Puppy-dog links a young animal to its adult form.
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Iron, silver, and gold are solid at ordinary room temperature.
Mercury is liquid.
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The numbers 13, 17, and 19 are prime.
The number 21 is composite.
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Monday, Wednesday, and Friday are days.
January is a month.
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The eye is used for seeing.
The ear is used for hearing.