What elements of the cartoon contribute to the negative stereotype of Mexican citizens during the 1800s? Check all that apply. Uncle Sam is wearing a hat.
Uncle Sam is wearing stars and stripes.
Pancho Villa is wearing a sombrero.
Pancho Villa is not wearing shoes.
Pancho Villa is firing guns wildly.
Pancho Villa is portrayed as a hero.

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater