Question58:-Sea water will boil at a temperature
A:-Higher than pure water
B:-Lower than pure water
C:-Same as that of pure water
D:-Cannot be predicted, it can be higher, same or lower
Correct Answer:- Option-A
Question59:- was absent on earth's atmosphere during the early days of origin of life.
#:- 00 (2)
B:-"CH_(4)
பு
॥:-0 (2)
Correct Answer:- Option-D
Question60:-Which one of the following is linked with Methaemoglobinaemia 7
A:-Methyl mercury
B:-Nitrate
C:-Cadmium
D:-Arsenic
Correct Answer:- Option-B
Question61:-Three Gorges is a
A:-Nuclear reactor
B:-Dam
C:-Biosphere reserve
D:-A lake in USA
Correct Answer:- Option-B
Question62:-The science of cryogenic deals with
A:-Crystallography
B:-Low temperature
C:-Low pressure
D:-Missile technology
Correct Answer:- Option-B
Question63:-The salt concentration in the open sea is
A:-1.5%
B:-2.5%
C:-3.0%
D:-3.5%
Correct Answer:- Option-D
Question64:-Monsanto is the firm behind introduction of in India.
A:-Mobile phones
B:-BT-cotton
C:-LCD Television
D:-Plasma TV
Correct Answer:- Option-B
Question65:-El-Nino is
A:-A freshwater lake
B:-An Ocean curmrent
C:-An air current
D:-A Glacier
Correct Answer:- Option-B
Question66:-'Kerogen' is
A:-Protein found in Human hair
B:-Protein found 17 ೧೦೪/5 milk
C:-Substance found in Fungal cell wall
D:-Solid waxy mixture of hydrocarbons
Correct Answer:- Option-D
Question67:-Very low BOD level of a water body indicates that the wateris
A:-Less polluted
B:-Highly polluted
C:-Rich in heavy metals
D:-Contain more organic matter