Mention the stages of cognitive development with appropriate age limit.
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Sensorimotor stage: birth to 2 years. Preoperational stage: ages 2 to 7. Concrete operational stage: ages 7 to 11. Formal operational stage: ages 12 and up.
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Answer: All plants and animals in an area are interdependent and interrelated to each other and their dependence on the environment is called an ecosystem. Human beings influence the ecology of a region in the following ways: ... They cut trees and kill animals, thereby creating an ecological imbalance.
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