Which of the following represents a chemical change?
1. rocks being smoothed by rapid water movement
2. the pink color of a rose
3. irons attraction to a magnet
4. decomposed of stone due to acid rain

Which legal case forced the university of maryland to admit an african american student to its law school?

Acommittee that exists permanently in either the house of representatives or the senate is called a a. permanent committee b. long-term committee c. standing committee d. enduring committee select the best answer from the choices provided

The development of simple stone tools by early hominids led to the ability to procure meat more efficiently. this in turn led to the change in diet that included larger amounts of protein. many scholars believe that this shift in diet was a significant part of how our ancient ancestors adapted so quickly to a varied set of environments, and thus were able to begin cultural development. this demonstrates the intimate connection between