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Science Clinic => Biology => Topic started by: tatyanajohnson on Jan 6, 2021

Title: What results when nitrogen dioxide and hydrocarbons react in the presence of sunlight?
Post by: tatyanajohnson on Jan 6, 2021

Question 1

What percentage of the world's tropical forests have been cut down for cropland, fuel wood, grazing land and timber?
◦ 20%
◦ 30%
◦ 40%
◦ 50%
◦ 60%

Question 2

What results when nitrogen dioxide and hydrocarbons react in the presence of sunlight?
◦ photochemical smog
◦ industrial smog
◦ a thermal inversion
◦ acid rain
◦ particulate fallout

Title: What results when nitrogen dioxide and hydrocarbons react in the presence of sunlight?
Post by: uniquea123 on Jan 6, 2021

Answer 1

50%

Answer 2

photochemical smog