QUESTION: 113

By taking careful measurements, scientists have determined that the universe is expanding over time. Individual components of the universe, such as galaxies, continue to travel through space. This concept is sometimes represented by a balloon as shown below. Each dot on the balloon represents a part of the universe, such as a galaxy.

Based on the information and diagram, which statement best describes the way galaxies move through space over time?

northward
westward
northwest
farther apart
closer together

Answer(s): D

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QUESTION: 114

For which activity is an environmental scientist likely to be qualified?

advising on diet planning
prescribing medication
analysing air pollution data
running audiovisual equipment
repairing computer equipment

Answer(s): C

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QUESTION: 115

-- Exhibit

-- Exhibit --
When an object is being raised against gravity, work is being done. Gravity is the force that must be overcome to lift an object. The amount of work done is determined by how high the object is lifted and the mass of the object. The higher an object is lifted, the more work is done.
If each book in the diagrams has the same mass, which diagram shows the most work done?

Answer(s): E

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QUESTION: 116

Transpiration is the evaporation of water produced during photosynthesis from the parts of a plant exposed to air, especially from its leaves. The rate of transpiration varies among species of plants, as seen in the table below.

Which statement best explains why the transpiration rate of a cactus is so much lower than that of a rose bush and a dogwood?

The cactus has adapted to dry climates through greatly reduced leaf surfaces.
The cactus contains parasitic insects that are consuming the water in the plant's roots.
The rose and the dogwood are water plants, so water cannot evaporate from their surfaces.
The dogwood transpires more than the rose because the dogwood's roots are deeper.
The cactus is not a plant, so it does not produce water during photosynthesis.

Answer(s): A

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Free GED SCIENCE Exam Braindumps (page: 29)

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QUESTION: 116