subject
Biology, 28.11.2019 23:31 hamaama

What causes photochemical smog?
a. it is formed by reactions involving sunlight and nitrous oxides and hydrocarbons released from automobile exhaust.
b. it is formed from sulfur oxides and particulate matter released from combustion of combustion of heating oil and coal.
c. it is formed by reactions between cfcs from industrial processes and ice crystals in the upper atmosphere.
d. it is formed when secondary pollutants such as ozone combine with primary pollutants such as hydrocarbons in cold winter temperatures?

ansver
Answers: 2

Another question on Biology

question
Biology, 21.06.2019 15:50
Based on the results of this study, what questions remain unanswered? how can these questions guide future research
Answers: 3
question
Biology, 21.06.2019 20:00
The shift of a vehicle's weight around its center of gravity is known as
Answers: 2
question
Biology, 22.06.2019 01:40
Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
Answers: 1
question
Biology, 22.06.2019 03:00
Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.
Answers: 1
You know the right answer?
What causes photochemical smog?
a. it is formed by reactions involving sunlight and nitrous o...
Questions
question
Social Studies, 30.07.2019 17:30
Questions on the website: 13722362