461. Sum of all ecosystems is classified as___________?
A. Aero sphere
B. Ionosphere
C. Biosphere
D. Ozonosphere

462. Average salinity or ratio of salt as per kilogram of water of ocean is__________?
A. 35 grams
B. 55 grams
C. 32 grams
D. 42 grams

463. The protein content in wheat is approximately_______________?
A. 6%
B. 9%
C. 12%
D. 15%

464. Alzheimer’s disease in human beings is characterized by the degeneration of _______
A. Kidney cells
B. Nerve cells
C. Liver cells
D. Spleen cells

465. The protein content of edible portion of egg is___________?
A. 13 %
B. 13.3%
C. 14 %
D. 14.5%

466. Vitamin A is found in the____________?
A. Green vegetables
B. white vegetables
C. Yellow vegetables
D. Red vegetables

467. On passing through food stuff, X-ray can kill the___________?
A. Fungus
B. Virus
C. Bacteria
D. insects

468. Intrinsic Semi-conductor is also known as__________?
A. Impure-Conductor
B. Pure-Conductor
C. Simple Conductor
D. None of these

469. Diameter of Sun is_____________?
A. 12 Lakh kms
B. 13 Lakh kms
C. 14 Lakh kms
D. 15 Lakh kms

470. Which is correct order of solar system starting from Sun ?
A. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
C. Mercury, Venus, Mars, Earth, Jupiter, Saturn, Neptune, Uranus
D. Mercury, Venus, Earth, Jupiter, Mars, Saturn, Uranus, Neptune