Environmental Science
Mobile combustion accounts

50-60 % of air pollution
40-50% of air pollution
10-20% of air pollution
5-10 % of air pollution

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
The order of succession in a lithosere or xerosere is

Moss stage ->Foilose lichen stage-> Crustose lichen stage ->herb stage->shrub stage->forest stage (climax community)
Foliose lichen stage->Crustose lichen stage->moss stage->herb stage>shrub stage->forest stage (climax community)
Crustose lichen stage->Foilose lichen stage->moss stage-> ->shrub stage-> herb stage->forest stage (climax community)
Crustose lichen stage->Foilose lichen stage->moss stage->herb stage>shrub stage->forest stage (climax community)

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
The atmospheric greenhouse effect is produced mainly by the:

Absorption and re-emission of visible light by the ground
Absorption and re-emission of ultraviolet radiation by the atmosphere
Absorption and re-emission of visible light by clouds
Absorption and re-emission of infrared radiation by the atmosphere
Absorption and re-emission of visible light by the atmosphere

ANSWER DOWNLOAD EXAMIANS APP