Scientists in the 16th and 17th centuries developed the study of astronomy mathematical equations a universal language of study a prevailing study of faith and science.

C. a universal language of study

Explanation:

During the 16th and 17th centuries, the scientific revolution took place, which shaped the scientific method and modern science as a universal language of study. This is a universal language because it consists of a clear method of study, composed by observation, hypotheses, and empirical proof, that can be applied and the results can be proved by anyone following the same steps. Furthermore, modern science was developed by the study of universal mathematical laws, which also gave consistency and support for scientific studies in many fields, giving place to an accurate and precise way of studying nature.

to gain new territory in the northwest to further the idea of Manifest Destiny to protect the United States from a Mexican invasion to help the Republic of Texas remain independent.