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Explanation:
america is most affected and this countries death toll is rising day by day and least country which had nonly 50 to 60 cases are kashmir and china i think crona is gone china just see after the lock down more people are affected fro this virus as you all see the news
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C. Minerals occur naturally and have a fixed chemical composition.
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Many different types of sand dunes exist, all of which are formed due to varying directions of the winds. Some predominant types of sand dunes are barchan dunes, linear dunes, transverse dunes, parabolic dunes and star dunes.
The sand dunes that are formed under winds coming from different directions but take the direction of the prevailing wind are known as transverse dunes.
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Explanation:
biotic factors are the living components of an ecosystem (producers, consumers, decomposers). They all have some effect on population dynamics, producers (plants) are eaten and can make clean air, consumers (ex. ants, badgers, bears, fish, humans) rely on producers for food, and decomposers (bacteria, earthworms, fungi, flies) decompose things like dead plants and animals.