There were 30 states at the beginning of 1850 and 31 at the end.
<span>At the start: </span>
<span>15 free states- Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Ohio, Michigan, Indiana, Illinois, Iowa, and Wisconsin </span>
<span>15 slave states- Delaware Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, Kentucky, Tennessee, Mississippi, Missouri, Arkansas, Texas, Louisiana, and Alabama </span>
<span>Then, with the Compromise of 1850, California came into the Union as a free state.</span>
B is the correct answer
Sir Francis Drake was an English explorer, sea captain, privateer, slave trader, naval officer, and politician. Drake is best known for his circumnavigation of the world in a single expedition, from 1577 to 1580.
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The vast improvements made in the field of medicine have served to lengthen our life expectancy and to reduce the rate of infant mortality.
The discovery of mechanization, better seeds, better techniques of irrigation and pest control, has worked to increase productivity levels on farms.
In transportation, railway, modern ocean liner, jet plane, and motor vehicle have made our lives more comfortable and provided great possibilities for modern commercial development and industrialization.
The invention of the computer has assisted the process of calculation in laboratories
Technology has made communication much simpler in recent times.
Science has brought about groundbreaking solutions to numerous deadly diseases.
Man is able to explore the space extensively because of the wide-scale development in technology.
Our life has become healthier and longer.
Modern hygiene, sanitation, medicine and surgery are conquering more and more physical and mental ills day by day. We now know and experience the joys of good health and longevity.
Disadvantages of Science and Technology
Machines have led to unemployment.
They have polluted water and atmosphere. They have caused noise pollution.
Factories have led to slums where human beings live in squalor.
Our moral and spiritual progress has failed to keep pace with our scientific progress.
We have allowed science to master us instead of using it as our servant.
Machines make us mechanical, deaden our sensibilities, stifle our creative talents, force mechanical regularity, uniformity and boredom upon us, increase our wants and desires, and tend to make us selfish, greedy and cr
B. Emancipation proclamation
