What commodity from the north did traders bring across the sahara to the sahel?

gold
water
wood
salt

Which process collects sample soils from particular areas of a site? a.) repetitive sampling b.) restorative sampling c.) random sampling d.) representative sampling

Read the article about the fraser river, one of the most important rivers in canada. what is the most important species of fish in this river? why are the numbers of these fish declining?

Ineed this answered asap the north korean communist government a. controls crop production and distribution. b. is not involved in crop production and distribution. c. exports its huge rice surplus to other countries. d. allows farmers to choose which crops to grow but controls where the crops are sold. which statement below is true? a. east asian nations are members of nafta. c. industry and production is not an important aspect of east asian economics. b. east asian nations are economically independent. d. the economies of most east asian countries are mixed or market systems. what is the main idea of this passage? a. the city of hiroshima can never fully recover from the atomic bombing of 1945. b. hiroshima is more modernized than any other city in japan. c. after being bombed, hiroshima was rebuilt and became a thriving urban port. d. the city of hiroshima has an extensive park system dedicated to peace.