Why was President Andrew Jackson
trying to get the Eastern Tribes removed?

in order to open new land for settlement by citizens of the United States.

Explanation:

With the onset of westward expansion and increased contact with Indian tribes, President Jackson set the tone for his position on Indian affairs in his message to Congress on December 6, 1830. Jackson’s message justified the removal policy already established by the Indian Removal Act of May 28, 1830.

c.) biotic: snails; abiotic: temperature climate

option b, all states follow similar rules and legal process is the right answer.

the 14th amendment in the constitution of america was enacted in july 1868, which include the citizenship, due process, and the equal protection under the law. this amendment was a response to the issues related to former slaves following the american civil war.

the citizenship clause granted citizenship to all persons born or naturalized in the u.s,.   due process of clause asserted that states may not deny any person "life, liberty or property, without due process of law and the equal protection clause declared that a state may not deny to any person within its jurisdiction the equal protection of the laws. the above mentioned excerpt from the constitution of the united states, ensures the citizenship,due process, and equal protection under the law.