The path of one object rotating around another

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

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent