When a human steps out into the cold air the body begins to shiver

Explanation:

When a human steps out into the cold air, the body begins to shiver in order to keep its temperature at 98.6 degrees fahrenheit. All living things maintain an internal balance. Green plants produce their own food through the process of photosynthesis.

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21 stacks

step-by-step explanation:

divide 630/30

21 stacks

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water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.