During the paleozoic and precambrian eras, there was only one large expanse of land. where was this land located?

a. near modern-day iceland

b. near modern-day australia

c. near modern-day canada

d. near modern-day chile

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Dubai is challenged by all of the following environmental factors except a. a warm and dry climate b. a lack of annual rainfall c. scarce freshwater resources d. a lack of valuable natural resources