Which pollutant from motor car exhaust causes mental disease _____?
Which pollutant from motor car exhaust causes mental disease _____?
A. Carbon dioxide
B. Lead
C. Sulpher Dioxide
D. Mercury
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The metal, which is a constituent of vitamin B12 is____________?
The metal, which is a constituent of vitamin B12 is____________?A. Iron
B. Magnesium
C. Zinc
D. CobaltThe good sources of Vitamin-A are?
The good sources of Vitamin-A are?
A. green leafy vegetables
B. seeds
C. fresh vegetables and fruits
D. sea foodsThe time period of a pendulum when taken to the Moon would?
The time period of a pendulum when taken to the Moon would?A. remain the same
B. decrease
C. become zero
D. increaseThe S. I. unit of refractive index is _______?
The S. I. unit of refractive index is _______?A. meter
B. cm
C. watt
D. no unitMale birds are ________ colorful than female birds.
Male birds are ________ colorful than female birds.A. Less
B. More
C. Equal
D. None of theseThe oldest barrage on the river Indus at Sukkur was built in_____?
The oldest barrage on the river Indus at Sukkur was built in_____?
A. 1932
B. 1940
C. 1930
D. 1928