Under which u. s. president was the panama canal project begun?
a) teddy roosevelt
b) franklin d. roosevelt
c) jimmy carter
d) bill clinton

Need now! 45 points laboratory: weather map interpretation i need someone to answer the other two questions. i will give to the best answer!

#4.) describe the most likely weather conditions at indiana / ohio boarder. also could someone double check my other answers? i'd really appreciate it

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks