Skip to content
MCQtimes.com
GK
Pakistan Studies
Current Affairs
Islamic Studies
English
MCQtimes.com
Toggle Menu
Ozone Depletion
Home
/
Environmental Science
/
Ozone Depletion
- Page 4
Show/Hide Answers
Ozone Depletion
Which chemical is used in air conditions and refrigerators ?
CFCs
Chlorine
Fluorine
Carbon
Author:
rikazzz
Comment
Ozone Depletion
Nonisothermal vortex shedding based on:
Temperature
Cold Air
Humidity
Cool Breeze
Author:
rikazzz
Comment
Ozone Depletion
Bromine’ is more effective in destroying CFCs than
Chlorine
PAN
Feron 11
Argon
Author:
rikazzz
Comment
Ozone Depletion
Troposphere contains 10% of atmospheric
Energy panel
Pressure
Ozone
Nitrogen
Author:
rikazzz
Comment
Ozone Depletion
Antarctic ozone hole was caused by
CFCs
PAN
CO2
CO
Author:
rikazzz
Comment
Ozone Depletion
What does ultraviolet radiation cause ?
Skin Cancers
Asthma
Bone weakness
Blood pressure
Author:
rikazzz
Comment
Ozone Depletion
Which chemical was used as a foam blowing agents?
Cl
CFCs
PAN
Feron 11
Author:
rikazzz
Comment
Ozone Depletion
How much stratospheric ozone layer’s concentration extending above earth ?
15 to 45km
17 to 40km
10 to 30km
15 to 30km
Author:
rikazzz
Comment
Ozone Depletion
How many treaties were signed to ban CFCs?
Two
Three
Four
Five
Author:
rikazzz
Comment
Ozone Depletion
Freon 12 belongs to group known as
Chlorofluorocarbon
Alklane
Dichlorodifluoromethane
Both a and c
Author:
rikazzz
Comment
Page navigation
Previous Page
Previous
1
2
3
4
5
6
Next Page
Next
Go to Page
Light
Dark
GK
Pakistan Studies
Current Affairs
Islamic Studies
English