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13.Biodiversity and Conservation
normal
Which of the following is not properly matched?
A
Formaldehyde - Carcinogenic
B
Sulphur dioxide - Respiratory problems
C
Nitrogen oxide - Brown air
D
Mean annual temperature of earth - $25^{\circ} C$
Solution
The temperature of earth in winter season is $1-10^{\circ} C$ while in summer it is $25-40^{\circ} C$
Standard 12
Biology
