General Science MCQs with Answers 9th Class
The percentage of nitrogen in air is
76%
77%
78%
79%
The process which increases the temperature in the temperatureis called
Photosynthesis
Oxidation
Greenhouse effect
Evaporation
Low iodine availability in humans causes the disease
Goiter
Cancer
Tuberculosis
Cholera
It is an important constituent of DNA and RNA our body
Iron
Chlorine
Fluorine
Phosphorus
The density of ice at o°C is & nbsp
0.918g/cm3
0.618g/cm3
0.718g/cm3
0.8/8 g/cm3
1 2
Google Ads