To an astronaut in space, the sky appears to be:

• Red
• White
• Dark
• Blue
Correct Option: C  [ Dark ]

Remark:

Cerebral Malaria is caused by:

• Plasmodium vivax
• Plasmodium malariae
• Plasmodium falciparum
• None of the above
Correct Option: C  [ Plasmodium falciparum ]

Remark:

Gravitational force is maximum at which of the following place?

• At equator
• At tropic of cancer
• At tropic of Capricorn
• At poles
Correct Option: D  [ At poles ]

Remark:

Sound causes hazardous noise pollution at decibels:

• Above 50
• Above 80
• Above 100
• Above 130
Correct Option: B  [ Above 80 ]

Remark:

Most plants absorb nitrogen in the form of:

• proteins
• nitrates and nitrites
• urea
• nitrates, nitrites and urea
Correct Option: D  [ nitrates, nitrites and urea ]

Remark:

Purity of milk is tested by:

• Electrometer
• Lactometer
• Radiometer
• Refractometer
Correct Option: B  [ Lactometer ]

Remark:

The phenomenon of light associated with the appearance of the blue Colour of the sky is:

• interference
• reflection
• refraction
• scattering
Correct Option: D  [ scattering ]

Remark:

The sex of a child before birth can be determined by:

• Amnoscopy
• Amniocentesis
• Amniograpghy
• None of these
Correct Option: B  [ Amniocentesis ]

Remark:

Which of the following colours is not a primary colour ?

• Red
• Yellow
• Green
• Blue
Correct Option: B  [ Yellow ]

Remark:

Which of the following is not a renewable source of energy ?

• Natural gas
• Geothermal energy
• Flowing water
• Biomass
Correct Option: A  [ Natural gas ]

Remark: