Answer:
Not only did Bolivar face the full strength of Spanish forces; he also had to contend with the difficult, mountainous terrain of South America. He turned this challenge, however, into an advantage, when he surprised Spanish forces by crossing the Andes and capturing Bogota.
Concept of manifest destiny was based on expansionism.
Explanation:
Manifest destiny was started during 19th century in US by John O' Sullivan , he was a journalist by profession. The people believed that the country's main aim was to expand. The main idea behind Manifest destiny is to capture more land that will be beneficial for cultivation purpose mainly the people focused in cotton cultivation and this would spread slavery to these parts as well.
The effect was that it included expansion of westward portion of the United States as well as there was increase in tension regarding political interests between Northern and Southern parts.
Various drawback was there, they are as follows, There was increase in slavery, It is unconstitutional by nature, many people died as well as suffered specially Indians, war and conflicts took place.
The cause of the increasingly tense relations between the mexican government and the american residents in texas after 1830 was mainly the increasing american immigration, that brought with it many cultural and social conflicts, since the Mexican natives became the minority in Texas, reaching only 7800 against the 30,000 English-speaking inhabitants, bringing as a consequence a conflict for the independence of Texas and then the annexation to the United States of America.
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
