IGCSE States of Matter Solid Liquid and Gas Questions and Answers




















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What is Intertidal zone? Define Estuary.

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Revision work for chemistry Grade-8 2021.

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Define Pedigree and Carrier. Pedigree: A pedigree is a chart used to trace the history of traits in a family. They are used to study   heredity patterns. Parents and offspring are shown in a pedigree.   Horizontal lines connect parents, and vertical lines connect parents to offspring. Males are represented as boxes ; f e mal e s ar e shown as circles. Individuals with a dominant trait have a shaded shape . Unshaded shapes represent recessiv e individu a ls . C arrier : A carrier is any individual who has inherited the gene for a trait, but does not show that trait  physically.
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