Question

2-To which among the following forms of pollution is the problem of every sore directly associated? a) Visual b)Soil. c) Thermal. d) Radio active​

Answer 1

Answer:

The main air pollutants are represented by gases forms, particles in suspension, different ionizing radiation and noise.

The gases forms are: oxidized and reduced forms of carbon (CO2, CO, CH4), of nitrogen (NO2, NO, N2O4, NH3, NH4+), SO2, O3, C6H6 vapours, Hg, volatile phenols, Cl2, etc.

The particulate forms are: PM10 and PM2.5 particulate matter, heavy metals with toxic effect (Pb, Ni, Cd, As), polycyclic aromatic hydrocarbons PAHs, etc.

Explanation:

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Answer 2

Afforestation is the process of planting trees to retain soil health and it is a conservation effort of establishing forests. This activity doesn't cause any kind of harm to the environment.

Other activities like using pesticides cause water pollution, developing estates create land pollution by construction activities.