1- Why did dinosaurs evolved earlier than humans? 2-living beings were evolved millions of years after the formation of earth. Why? 3-On what basis scientists believe that humans beings and earth did not come into the existence at the same time? 4- How is the information about ancient living beings taken? Explain

1.Dinosaurs came much earlier than humans in the history of our planet. Dinosaurs were large animals. Mammals of the time were much smaller and couldn't compare to dinosaurs in size.

2. ok so, the evolution of the earth occurred 4500 millions of years ago. During that time its surface was so hot hot, not even a single species could survive and to cool the earth surface it took millions of year and atmosphere started to develop around it. So, living beings were evolved only millions of years after the evolution of earth.

3. According to the geological time scale prepared by the scientist, earth was evolved 4500 years ago ; during that time only rocks were present and human beings were evolved just before 2 mil. years ago. Which shows that human beings and earth did not come in existence at the same time.

4. Historians have two major ways of understanding the ancient world: archaeology and the study of source texts. Primary sources are those sources closest to the origin of the information or idea under study.

here are some events that to cause increased conflict between the north and south

1) mexican cession- gaining modern day california, utah, arizona, and new mexico from mexico. caused southern and northern politicians to fight over whether or not there would be slavery in these newly acquired territories.

2) uncle tom's cabin- this famous book described the cruelty of slavery in the south during the antebellum period, causing more northerners to support abolition and southerners to resent the book as they felt it unfairly depicted southern society.

3) kansas- nebraska act- disagreements over whether or not kansas and nebraska would be free or slave states caused issues between northern and southern politicians in congress.

4) bleeding kansas- this fighting took place in kansas after congress allowed this territory to vote on whether or not they would have slavery. citizens were killed and buildings were destroyed during this fighting.

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

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