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GED-Science Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Testking GED GED-Science Dumps with VCE and PDF 91-100

September 26, 2017

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2017 Sep GED Official New Released GED-Science
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GED Science Exam

Question No: 91

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An area in southern Canada receives about 60 centimeters (23 inches) of rain each year. The winter season lasts from late October into early May, and the common trees are needle-leaf evergreens.

This area would be classified as which of the following biomes?

  1. desert

  2. grassland

  3. deciduous forest

  4. taiga

  5. tundra

Answer: D

Question No: 92

According to the information provided, what will happen to a straight metal bar when it is cooled?

  1. bend into a quot;uquot; shape

  2. become longer

  3. become more flexible

  4. become shorter

  5. remain the same

Answer: D

Question No: 93

Review the material, then click Next to see the questions related to this material.

You will be able to use an Information button to view the material on each question screen.

The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.

– Exhibit –

The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.

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– Exhibit –

Which of the following substances is the MOST acidic?

  1. lemon juice(pH = 2.3)

  2. vinegar(pH = 2.8)

  3. orange juice(pH = 3.5)

  4. milk(pH = 6.5)

  5. seawater(pH = 8.4)

Answer: A

Question No: 94

Refer to the following information and table.

The table below indicates the results of a preliminary study of a flu medication (RX). The subjects were randomly selected groups of males, ages 50-70, residing in a North American city with a population of more than one million people.

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Based on the data in the chart and the information provided, which treatment group was the control group in this preliminary study?

  1. A

  2. B

  3. C

  4. D

  5. E

Answer: A

Question No: 95

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According to the diagram, what occurs at the weather front where a cold air mass and a warm air mass meet?

  1. Warm air sinks.

  2. Air becomes dry.

  3. Cold air rises.

  4. Wind speed increases.

  5. Precipitation forms.

Answer: E

Question No: 96

Studies of Moon rock show that much of the Moon is composed of basalt. Which of the following statements is the most reasonable conclusion based upon this information?

  1. was once covered by oceans

  2. has experienced much erosion

  3. has experienced volcanic activity

  4. has experienced frequent, strong earthquakes

  5. has experienced periods of flooding

Answer: C

Question No: 97

– Exhibit-

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Which of the following pairs of biomes would have extreme climates and similar annual rainfall?

  1. desert and taiga

  2. desert and tropical rain forest

  3. taiga and tropical rain forest

  4. grassland and tundra

  5. desert and tundra

Answer: E

Question No: 98

– Exhibit –

Radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X rays, and gamma rays are forms of radiant energy that make up the electromagnetic spectrum. Each portion of the electromagnetic spectrum has waves that vary in frequency and wavelength, but all can be used by people. Radio waves can be used to carry music and voices for great distances through air, X rays can be used for diagnostic work in medicine, and infrared radiation can be used for heating and drying.

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– Exhibit –

What appears to be the difference in the waves when moving from radio waves to X rays in the electromagnetic spectrum?

  1. decreased wavelength

  2. decreased energy

  3. decreased frequency

  4. increased wavelength and energy

  5. increased wavelength and frequency

Answer: A

Question No: 99

– Exhibit –

The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.

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– Exhibit –

Which of the following substances is the MOST basic?

  1. tomato juice (pH = 4.2)

  2. black coffee (pH = 5.0)

  3. pure water (pH = 7.0)

  4. human blood (pH = 7.4)

  5. sodium carbonate (pH = 12.5)

Answer: E

Question No: 100

In a suspension, the particles are larger and tend to settle out; in a solution, the particles are microscopic and do not settle out. Pure substances contain only one compound and are not mixtures.

Exhibit:

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The contents in the container probably represent which of the following?

  1. a dilute solution

  2. a saturated solution

  3. a supersaturated solution

  4. a suspension

  5. a pure substance

Answer: D

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