Which pollutant from motor car exhaust causes mental disease _____?

A. Carbon dioxide
B. Lead
C. Sulpher dioxide
D. Mercury

Spinach leaves are rich source of________

A. Amino acid
B. Iron
C. Vitamin e
D. Carotene

Galvanised Iron sheets have a coating of____________

A. Tin
B. Silver
C. Zinc
D. Chromium

Phobos is the natural satellite of which planet__________ ?

A. Mars
B. Venus
C. Saturn
D. Neptune

what kind of soil is treated with gypsum to make it suitable for cropping______?

A. Alkaline
B. Acidic
C. Waterlogged
D. Soil with excessive clay content

Mercury is also known as_________?

A. Shine silver
B. Quick silver
C. Slow silver
D. Slippery silver

Cow milk is a rich source of____________?

A. Vitamin c
B. Vitamin b
C. Vitamin a
D. Vitamin k

Which Vitamin gets destroyed on heating?

A. B
B. E
C. K
D. C

The speed of light with the rise in the temperature of the medium____________?

A. Decrease
B. Increase
C. Remain the same
D. First decrease then increase

The strength of wave action depends on all these EXCEPT:

A. Currents in the sea
B. Wind strength
C. Depth of coastal water
D. Height of waves