What are 3 proteins in the biology text

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u. s. and mexico. the st. lawrence seaway provides an important trading route for the u. s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer