Since, Sally, a nine-month-old can retrieve her ball when her mother hides it under a blankets, she has known Object Permanence.
<h3>What Is Object Permanence?</h3>
Object permanence serves as a term that describes the understanding of how items and people still exist even when one can't see or hear them.
Therefore, since the girl can know where the ball was hide , she was mastering Object permanence.
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brainly.com/question/5589531
Signs of aging for women in their 40s include wrinkled and dry skin (due to loss of elasticity and volume), a bigger midsection (due to a slower metabolism), and gray hair (as the production of melanin-making cells - the cells that give pigment to hair - slows).
An area of land under the ruler or a state
The location and greatness in spices, clothes ect.