3. When do conflicts get worse ?
A. when natural-resource shortages increase in the features of gradually increasing demands from a
rising human population.
B. when a natural resource crosses political borders
C. when freedom could destroy the resource.
D. when eroded soil and silt cloud affect many organisms.
Bạn đang xem 3. - DE THI - DAP AN_thi HK2 tieng anh 10 chuan-2019-2020