Describe at least two accomplishments of President Theodore Roosevelt in the field of environmental conversation.

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.

What industry did chavez nationalize that caused rampant inflation?