At which location would you be most likely to find a high population density? A. within the Sahel B. near the Congo rainforest C. along the banks of the Niger River D. in the middle of the Sahara Desert

Which of there factors contributed most to us westward expansion in the second half of the nineteenth century?

Which of the activities listed below could limit global warming by slowing the increase in atmospheric carbon dioxide levels? view available hint(s) select all that apply. a. replacing fossil fuels with nuclear energy b. burning vegetation to clear land for agriculture c. limiting soil erosion so organic matter takes longer to decompose d. choosing a fuel-efficient car, or bicycling to school or work e. using more electrical appliances and cars f. cutting down forests to build houses

Why the moon is not visible from earth during the new moon ?