An Appropriate Amount of Exercise for a 12-Year-Old Would Be

question 9

Multiple Choice

An appropriate amount of exercise for a 12-year-old would be

• A) up to 30 minutes of enjoyable activity per day.
• B) at least 20 minutes of physical activity per day.
• C) at least 60 minutes of physical activity per day.
• D) 1 to 2 hours of physical activity at least twice a week.

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Definitions:

Newman Projection

A way to visualize the conformation of a chemical compound by looking down the bond between two carbon atoms, showing how substituents are spatially arranged.

C3-C4

Refers to the connection or transformation between the third and fourth carbon atoms in a molecular structure.

Conformations

The spatial arrangement of atoms in a molecule that can be changed by rotations around single bonds without breaking any bonds.

Newman Projection

A method of depicting the three-dimensional structure of molecules by looking down the length of one of the bonds to better understand spatial relationships.