What percent of the earth's surface does the ocean cover? a) 21%
b) 50%
c) 75%
d) 78%

In stage 2 farmers used the land primarily to grow food for their families and their small communities.

Which of these has the least impact on the climate of a place

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare