GED Updated GED-Science Exam Questions and Answers by theadora

Science and technology are two related but distinct fields. Their major components are illustrated below.

Which statement represents a technological solution to a problem?

Blood typing is essentially a chemical reaction that provides data so that blood may be safely transfused from one person to another. The basic objective is to avoid “clumping” that could occur in the recipient when the wrong blood type is received. These “clumps” of red blood cells could block arteries or veins affecting the blood flow to critical body organs, like the heart or the brain.

Exhibit:

Based on the chart and the information, which blood type will not form clumps with either Anti-A reagent serum or the Anti-B reagent serum?

Which factor affects fish survival in lakes with acid deposition?

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?