Geographers classify ecosystems by the
a. loss of natural habitat
b. interaction of humans and animals
c. climate and seasons
d. plants and animals there

Which search pattern would be best suited for a crime scene where many investigators are available to search a large area? a. spiral b. grid c. line d. zone

Which type of seismic waves are confined at the surface

Islam and the arabic language spread throughout north africa in the 600s primarily through a. african traders b. american colonists c. european explorers d. middle eastern armies select the best answer from the choices provided