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GED-Science Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Testking GED GED-Science Dumps with VCE and PDF 131-140

September 26, 2017

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

Question No: 131

Almost all food containers and packages have nutrition labels such as the one below, which might appear on the container of a soft drink. These labels indicate the number of servings in the container and the ingredients of its contents. They will usually list the amount of fat, sodium, sugars, carbohydrates, and protein that are in the contents. People who are diabetic can not consume a large amount of sugar in their diet.

Which statement best describes the expected and MOST sensible reaction of a person who is diabetic when he or she reads the label on this container of soft drink?

Exhibit:

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Exhibit

A.

  1. it contains more protein than you should consume in a day

  2. it contains no calories

  3. it contains no fat

  4. it has 8 oz per serving

Answer: A

Question No: 132

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 has a range of 0-14. A pH of 7 is the neutral point. The acid range is less than 7. The basic range is greater than 7. Indicators are chemicals that in a solution change color to indicate an approximate pH. The indicator litmus is red in the acid range and blue in the basic range. The diagram below shows the pH scale and the pH values of several common substances.

– Exhibit –

The pH scale has a range of 0-14. A pH of 7 is the neutral point. The acid range is less than 7. The basic range is greater than 7. Indicators are chemicals that in a solution change color to indicate an approximate pH. The indicator litmus is red in the acid range and blue in the basic range. The diagram below shows the pH scale and the pH values of several common substances.

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– Exhibit –

Based on the information and the diagram, which substance would cause the indicator litmus to be a blue color?

  1. vinegar

  2. milk

  3. ammonia

  4. apple juice

  5. tomato juice

Answer: C

Question No: 133

Potential energy is stored energy. Kinetic energy is energy of motion. Conduction is the transfer of energy when molecules collide. Convection is the transfer of heat caused by density differences in air.

What type of energy change is demonstrated when a child, starting from the top, goes down a play slide?

  1. potential to kinetic

  2. kinetic to convection

  3. convection to conduction

  4. conduction to potential

  5. kinetic to potential

Answer: A

Question No: 134

Science is a systemized body of knowledge based on observation and experimentation. Technology involves applied science and the practical applications of scientific knowledge. The making of lenses for eyeglasses is a technology that is based on the scientific principles of optics explaining how light rays are bent by finely ground lenses.

Which example would be considered science rather than technology?

  1. can opener

  2. structure of the atom

  3. seesaw

  4. microscope

  5. fishing rod

Answer: B

Question No: 135

An animal population can increase or decrease because of food scarcity or other changes in a habitat. The graph below shows changes in a rabbit population over a 10-year period.

According to the graph,

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during which period of time were the numbers of rabbits leaving the population and joining the population about the same?

  1. between 0-2 years

  2. between 2-4 years

  3. between 4-5 years

  4. between 5-7 years

  5. between 8-10 years

Answer: E

Question No: 136

Vertebrates, animals with backbones, are divided into the following five major groups: fish, reptiles, amphibians, birds, and mammals. Some characteristics of these groups are given in the table below.

Which statement is true if an animal lives in water, does not lay eggs, and is warm- blooded?

Exhibit:

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  1. a fish

  2. a reptile

  3. a mammal

  4. an amphibian

  5. a bird

Answer: C

Question No: 137

Garbage, or “municipal solid waste,” is composed of seven main items, which include plastics, food and yard wastes, paper, metals, glass, and other nonspecific trash. The type of garbage in a garbage dump can be related to the lifestyle of the people using the dump.

Exhibit:

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According to the graph at the left, which statement is the BEST interpretation of this

community’s use of the garbage dump?

  1. Most of the residents use glass containers rather than plastic containers.

  2. Paper recycling is evident from the garbage composition.

  3. The area is made up of mostly high-rise apartment buildings with very little yard space.

  4. The area residents disposed of more paper products than any other garbage type.

  5. If the residents started a successful recycling program, the percentages of the seven main items in the garbage dump would not change.

Answer: D

Question No: 138

The pH of a liquid is a measure of its acidity or its alkalinity. Even small changes in pH of human blood can cause very serious health problems.

Carbon dioxide (CO2), is one of the dissolved gases present in healthy blood. CO2 normally mixes with the water in blood to form a mild acid, carbonic acid, which lowers the blood pH.If a health problem causes the dissolved carbon dioxide to increase or decrease, the blood’s pH would change and could produce an unhealthy pH level.

Based on this information, which statement best summarizes the blood condition that might result when an individual has a respiratory condition that causes the blood to contain too much CO2?

  1. The blood pH will remain the same.

  2. The blood pH will be lowered.

  3. The blood will be less acidic.

  4. The blood’s white cell count will be greatly decreased.

  5. The blood will clot more quickly.

Answer: B

Question No: 139

In the diagram below, the shaded parts show how much water each boat displaces as it floats. Boat B weighs more than boat A, since it has more people aboard. Boat B displaces more water than does boat A. For floating to happen, the weight of the water displaced has

to be equal to the weight of the floating boat.

– Exhibit –

In the diagram below, the shaded parts show how much water each boat displaces as it floats. Boat B weighs more than boat A, since it has more people aboard. Boat B displaces more water than does boat A. For floating to happen, the weight of the water displaced has to be equal to the weight of the floating boat.

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– Exhibit –

.

Flood waters do not have to be very deep to float a car. In fact, only two feet of water, about knee high, will float the average car.

Which statement BEST explains why a car floats in such a small amount of water?

  1. The car is not equipped with four wheel drive.

  2. The car’s center of gravity is at the two foot line.

  3. The weight of water that the car displaces is the same as the weight of the whole car.

  4. The water makes the road surface too slick for the car to maintain traction, increasing the braking distance.

  5. The car is not equipped with an automatic transmission.

Answer: C

Question No: 140

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. An airplane that is flying through the air is affected by basically four forces acting on it.

They are indicated on the diagram below.

– Exhibit –

An airplane that is flying through the air is affected by basically four forces acting on it. They are indicated on the diagram below.

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– Exhibit –

When the airplane is flying at a constant speed, all of the forces acting on the plane are in balance.

If all four forces shown in the diagram are in balance, which statement best describes the situation? (The wind speed or turbulence has no effect on the plane’s position or motion.)

  1. The plane is slowing down.

  2. The plane is in a state of equilibrium.

  3. The plane is weightless.

  4. The plane will crash because nothing is holding it up.

  5. A major change in one force would not affect the plane’s motion or position.

Answer: B

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