Half of US

question 34

True/False

Half of U.S. adolescents attend a physical education class at least once a week.

---

Definitions:

Epicatechin

A type of flavonoid found in certain plants such as green tea and cocoa, known for its antioxidant properties and potential health benefits.

Compounds Class

Categories or groups of chemical substances classified based on common properties or structural features.

World's Population

The total number of living humans on Earth at a given time.

Fossil Fuels

Natural fuels such as coal, oil, and natural gas formed from the fossilized remains of ancient plants and animals.