1.C
Air pollution is a contamination of natural air with dangerous gases.
2.G
Water pollution is a contamination of both drinking water from rivers, ponds, and also seawater with large amounts of human and industrial wastes.
3.B
Land pollution is a consequence of the excess dumping of toxic waste.
4.F
Sound pollution is a disturbance of silent environment with harsh loud.
5.A
Radiation pollution is a result of using radioactive elements from atomic energy stations.
6.D
Thermal pollution is a consequence of releasing excess heat from power plants, industries involved in metals molding, etc.
7.E
Light pollution is a consequence of the excessive and inappropriate use of artificial light.