Alzheimer's disease<span> is the most common cause of dementia. The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, </span>problem<span>-solving or language. These symptoms occur when the brain is damaged by certain </span>diseases<span>, including </span>Alzheimer's disease
<span>Calcium because it is responsible for making our bones strong, thus allowing us to perform many activities.
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Water is the universal solvent, because it is extremely polar. One side is negative, one side is positive.
Being a universal solvent, water is extremely efficient at dissolving ionic compounds, such as table salt, NaCl.
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Predators can use camoflage to hide until prey comes by, or they can use their adaptations like claws or beaks to hunt the prey in a more hands-on way.
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