GED GED-Science Exam With Confidence Using Practice Dumps

Windchill is the rate of heat loss on the human body resulting from the combined effects of low temperature and wind. As wind speeds increase, heat is carried away from the body at a faster rate, thus lowering both the skin temperature and, ultimately, the internal body temperature. Many other factors can affect the impact of windchill, such as type of clothing worn, the amount of flesh exposed, and an individual's physical condition.

Based on the information provided, which of these practices would BEST protect a person from the damaging effects of windchill on a severe day?

A polar bear’s furry coat protects the bear from the frigid air temperature. Similarly, a covering of ice floating on a pond of water protects the fish that inhabit the pond.

Why does water remain in a liquid state below the surface of ice?

Many scientists believe that early in Earth’s history, life began in water, aided by the energy from sunlight. Dissolved molecules probably bonded chemically with each other to produce increasingly complex organic molecules called “heterotroph aggregates.” These molecules eventually developed the ability to reproduce.

Why are heterotroph aggregates not found on Earth’s Moon?