The major sources of food for humans are plants and animals. Most of this food is obtained from agriculture and animal husbandry.
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All living organisms need food because it supplies essential nutrients such as proteins, carbohydrates, fats, vitamins, and minerals, which are required for body development, growth, and overall health.
The challenge arises in determining the appropriate mass to assign to a chlorine atom because it consists of a mixture of isotopes with different masses.
Chlorine isotopes occur naturally in the ratio of 3:1, with masses 35 u and 37 u, respectively.
Isotopes of an element differ in their physical properties, such as mass, density, and stability, due to variations in their atomic masses caused by differing numbers of neutrons.