Inventions and Inventors Answers
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What is the best definition of heredity?
A
Heredity is the theory that energy can travel most safely through alternate currents.B
Heredity is the process by which characteristics are passed to offspring.C
Heredity is the process by which heat kills harmful bacteria in milk and other foods.D
Heredity is the theory that radiation can be dangerous or deadly when misused.2
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The chart shows automobile ownership in the early twentieth century.Based on the chart, what conclusion can be made about automobile ownership?
A
In 1910 and 1920, automobile sales increased enormously.B
People bought new types of automobiles in the 1930s.C
Automobiles were slow and unreliable until the 1950s.D
Automobiles became more popular and affordable over time.3
The photo shows an invention from the Second Industrial Revolution.
A
the alternating current engineB
the telephoneC
the telegraphD
the internal combustion engine4
To means to remove harmful bacteria and other germs.
Answer not available
5
The Wright brothers made their mark on history by
A
flying the first engine-powered plane.B
developing the first light bulbs.C
inventing the first telegraph.D
making the first telephone.6
How did Thomas Edison help make cities safer?
A
Cities became less crowded because airplanes allowed people to move to new areas.B
Light bulbs replaced gas lights and kept city streets well lit to reduce crime.C
Police could cruise the streets in automobiles powered by internal combustion engines.D
The telephone made it easy to call for help in case of an emergency.7
Which inventor developed a new motor that generated alternating current (AC) electricity?
A
Marie CurieB
Gregor MendelC
George Washington CarverD
Nikola Tesla9
What was the main way in which industrial age inventors helped farmers?
A
by developing new techniques for growing cropsB
by removing harmful bacteria from the soilC
by using radiation to control farm pestsD
by improving farmers’ working conditionsDid you find these answers helpful?
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