In the mid-1950s, a researcher in los angeles was able to create smog by setting up a large, clear chamber and using it to expose auto exhaust to sunlight. he was demonstrating
a) the cause of acidic deposition
b) point source pollution
c) non-point source pollution
d) the cause of ozone depletion
e) photochemical reactions

Since so many american men during world war ii were fighting overseas, the factorices lay empty. this presented a problem the u.s. military was in such dire need of manufactured goods bullera, tanks, airplanes , ships, and many other things. whose point of view si best reflected in these lunes?

Plz which of the following statements about the fugitive slave act of 1850 is not accurate? a. marshals you refuse to arrest a suspected fugitive could be find $1000. b. slave owners had to present evidence an african-american in the north was a fugitive slave. c. any person who provided food or shelter to a fugitive slave could be find $1000 and placed in jail for six months. d. it required of federal marshals to arrest any african-american suspected of being a runaway slave.

Compare the roles of the three countries of the central powers.