Which of the following best describes why the united states entered world war 1
a. because of german american's sedition
b. because of german submarine attacks on us ships
c. because of us alliance with france
d. because of the bolshevik revolution in russia

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste