1 nanometer = ?
1.10–3 meter
2.10–6 meter
3.10–9 meter
4.10–12 meter
A camera uses a __________ to form an image.
1.convex lens
2.concave lens
3.condenser lens
4.none of these
At night, Plants intake __________ and release __________.
1.Oxygen, Carbon dioxide
2.Carbon dioxide, Oxygen
3.Oxygen, Carbon monoxide
4.Carbon monoxide, Oxygen
Biomass is converted into fuel by:
1.Fermentation
2.Reflection
3.Scattering
4.Evaporation
Blood is cleaned by
1.Lungs
2.Liver
3.Heart
4.Kidneys
CNG stands for
1.Converted Natural Gas
2.Conduced Natural Gas
3.Conducted Natural Gas
4.Compressed Natural Gas
Deficiency of Vitamin-D results in
1.night blindness
2.rickets
3.scurvy
4.hair fall
During winter in cold countries, the __________ is mixed to melt the ice on the icy roads.
1.Salt
2.Chlorine
3.Carbon dioxide
4.Water
Each day human body breathe in ________ liters of air.
1.5,000 to 10,000
2.10,000 to 15,000
3.15,000 to 20,000
4.20,000 to 25,000
For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will
1.also decrease
2.increase
3.remains constant
4.none of these
GPS is an abbreviation for
1.Global Poles System
2.Global PolySiliconium Store
3.Global Positioning System
4.Global Position Structure
In a very low temperature which from the following will freeze at last?
1.River water
2.Canal water
3.Sea water
4.Water in a lake
In a very low temperature which from the following will freeze at last?
1.River water
2.Canal water
3.Sea water
4.Water in a lake
In general, Comets have __________ orbits.
1.Elliptical
2.Highly elliptical
3.Circular
4.Parabolic
In the solar system, the Great Spot is on the planet
1.Saturn
2.Venus
3.Mars
4.Jupiter
Instrument used for measuring very high temperature is
1.Pyroscope
2.Pyrometer
3.Seismograph
4.Xylometer
Oxidation is a chemical reaction involving the
1.Gain of Electrons
2.Loss of Electrons
3.Gain of Protons
4.Loss of Protons
Pathogens contains special proteins called:
1.antigens
2.trypsin
3.lipase
4.Amylase
Radioactivity was discovered by
1.Lord Kelvin
2.J. J. Thomson
3.Ernest Rutherford
4.Henri Becquerel
Sound waves are _________ waves.
1.Transverse
2.Electromagnetic
3.Longitudinal
4.none of these
The average adult has a blood volume of about ________ liters.
1.4
2.5
3.6
4.7
The density of water is
1.1 g/cm3
2.1.5 g/cm3
3.2 g/cm3
4.none of these
The fluid part of blood is known as
1.plasma
2.platelets
3.blood cells
4.hormones
The Great Spot is a
1.Mountain
2.Desert
3.Frozen Carbon dioxide
4.Storm
The lifespan of Red Blood Cells is __________ days.
1.60
2.120
3.180
4.240
The lifespan of White Blood Cells is __________ day(s).
1.1
2.2
3.3
4.4
The most abundant element in the Earths crust is
1.Oxygen
2.Hydrogen
3.Carbon Dioxide
4.Silicon
The most abundant element in the universe is
1.Oxygen
2.Hydrogen
3.Carbon Dioxide
4.Silicon
The most densest substance on the Earth is
1.Platinum
2.Copper
3.Steel
4.Osmium
The most densest substance on the Earth is
1.Platinum
2.Copper
3.Steel
4.Osmium
The nearest planet to the Earth is
1.Venus
2.Mercury
3.Mars
4.Moon
The planet that moves round the Sun at the highest speed is
1.Jupiter
2.Venus
3.Mars
4.Mercury
The planet that moves round the Sun at the highest speed is
1.Jupiter
2.Venus
3.Mars
4.Mercury
The planet which is easily visible from the Earth is
1.Mercury
2.Venus
3.Mars
4.Jupiter
The planet which is easily visible from the Earth is
1.Mercury
2.Venus
3.Mars
4.Jupiter
The position of an element in the Periodic Table is determined by its __________ number.
1.Electron
2.Proton
3.Neutron
4.Positron
The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in _______ of sea water.
1.1 gram
2.10 grams
3.1 kg
4.10 kg
The science of lightning is called
1.Aerology
2.Meteorology
3.Electeorology
4.Fulminology
The SI unit of pressure is
1.pascal
2.joule
3.tesla
4.henry
The speed of light is
1.280,000 km/s
2.300,000 km/s
3.320,000 km/s
4.none of these
The Sun is a/an
1.Star
2.Planet
3.Asteroid
4.Meteor
The Suns mass is mainly consist of hydrogen (about 73%). The second main constituent (about 25%) is
1.hydrogen
2.helium
3.carbon dioxide
4.nitrogen
Urine is produced in
1.Kidneys
2.Lungs
3.Large intestine
4.Liver
What is the original source of energy for biomass?
1.Earth
2.Moon
3.Sun
4.Star
When white light is passed through a prism, it splits into _______ colours.
1.5
2.6
3.7
4.8
Which from the following is NOT a conductor?
1.Aluminium
2.Silicon
3.Graphite
4.All are conductors
Which from the following is true for Sound?
1.Sound cannot travel through a vacuum
2.Sound cannot travel through gases
3.Sound cannot travel through liquids
4.Sound cannot travel through solids
Which of these addictive drugs are also used as painkillers?
1.Narcotics
2.Sedatives
3.Hallucinogens
4.All can be used
Which of these is an anti-viral protein?
1.Urokinase
2.Thymosin
3.Insulin
4.Interferon
X-rays were discovered by
1.Rontgen
2.Thomson
3.Rutherford
4.Bacquerel