What color will result if red and green light are mixed?

February 3, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

The three primary colors of light are red, green, and blue. When all three colors are mixed equally, white light is produced. However, if only two colors are mixed equally, one of the three secondary...

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What is a likely prediction about other vertebrates with magnetite near their brains?

February 2, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

What is a likely prediction about other vertebrates with magnetite near their brains?A . suffer middle-ear related balance problemsB . use the Sun to determine direction of movementC . use the stars to determine direction...

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Which of the following was a contributing factor for the more than 8-percent decrease in heart disease mortality between 1988 and 1989?

February 2, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

The death rate from heart disease fell more than 8 percent in just one year during the 1980s. Advances in public awareness of heart disease and in treatments for it are thought to be partially...

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The guide must have been speaking about which organism?

February 1, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

A tour guide points to a water-filled tank containing live specimens and says, “Ancestors of this organism developed earlier in Earth’s history than any other organism here at the aquarium.” The guide must have been...

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Which statement provides the best interpretation of the data?

February 1, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

A biology class examined the effects of small amounts of several chemicals on the heart rate of tiny water fleas. The graph shown at the left shows the results. Which statement provides the best interpretation...

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Which is the procedure for preparing the clay soil for planting?

February 1, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

A family wants to plant a garden, but the soil around the house is mainly clay. Clay soil easily becomes saturated with water, cutting off the air supply needed by plants. Adding sand and peat...

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In the diagram on the left, where would the LEAST amount of force be needed to move the weighted box?

January 31, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

Simple machines reduce the amount of force needed to do work such as lifting an object. The simple machine shown below is a lever. A downward force on one end of a lever moves the...

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Which statement identifies the difference between a substance in liquid state and a substance in solid form?

January 31, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

Which statement identifies the difference between a substance in liquid state and a substance in solid form?A . more space exists between its molecules in a liquid stateB . the molecules contain more heat energy...

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Based on the information, which plant leaf symptom could have resulted from more than one type of nutrient deficiency?

January 31, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

As plants grow, they absorb nutrients from the soil. Plant leaves can be carefully observed to determine the relative healthiness of the plant and whether it is suffering from a nutrient deficiency. The chart below...

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Which replacement given below is most likely to produce the required increase in torque for the wrench?

January 30, 2021PdfprepGED ScienceGED Science exam questions, GED Science practice exam, Science

Exhibit: Torque is the measure of a force that produces rotation. A wrench is used to loosen a bolt as shown at the left. The bolt is stuck, so it will require much more torque...

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