Environmental pollution is contamination of air, water and land from (23) ___________ waste. Air pollution is the release of chemicals and particles into the (24) ___________. Water pollution includes surface runoff, leakage into groundwater, liquid spills, wastewater discharge and littering. If toxins (25) ___________ on the ground or if an underground storage tank leaks, the soil can become contaminated. Well-known contaminates include herbicides and pesticides.
Environmental pollution can have deadly effects (26) ___________ humans and ecosystems. Pollution leads to the depletion of the ozone layer, global warming and climate change. In conclusion, pollution is a serious problem in many parts of (27) ___________ world, especially in developing countries.
A.
man-making
B.
man-done
C.
man-doing
D.
man-made
câu 23 ạ
A
A.
man-making