1 light year =
1.9.5×106 km
2.9.5×109 km
3.9.5×1012 km
4.9.5×1018 km
A person seated in front of a fire receives heat by
1.Conduction
2.Convection
3.Radiation
4.None of these
About 50% of the Earths crust, including the waters on the Earth and atmosphere, is
1.Oxygen
2.Carbon Dioxide
3.Silicon
4.Clay
According to Big Bang Theory, the Universe began about ________ billion years ago.
1.10 – 20
2.20 – 30
3.30 – 40
4.40 – 50
Acid rain is mainly caused by emissions of __________ in the atmosphere.
1.Sulfur Dioxide and Potassium Nitrate
2.Sulfur and Charcoal
3.Nitrogen Oxide and Potassium Nitrate
4.Sulfur Dioxide and Nitrogen Oxide
Biosensor is used to measure?
1.Blood glucose level
2.The body pH value
3.Amount of hemoglobin
4.Salinity in Urine
Carrot is good source of vitamin
1.A
2.B complex
3.C
4.D
Deficiency of __________ causes loss of appetite and poor growth.
1.zinc
2.iodine
3.copper
4.iron
Diamond is an allotropic form of
1.Carbon
2.Hydrogen
3.Nitrogen
4.Silicon
Digestion of food is completed in the
1.small intestine
2.large intestine
3.stomach
4.Liver
During photosynthesis, plants
1.take in Carbon Dioxide
2.take in Oxygen
3.give off Carbon Dioxide
4.give off Oxygen
Einsteins famous equation which states that mass and energy are interchangeable is
1.E = mc2
2.E = cm2
3.M = ec2
4.M = ce2
For proper formation of teeth, __________ is essential.
1.iodine
2.copper
3.fluorine
4.iron
If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is
1.Conduction
2.Convection
3.Radiation
4.None of these
In general, wind speed of 105 -137 km/h cause
1.minor or no damage
2.considerable damage
3.severe damage
4.extreme damage
In night, when photosynthesis is stopped, plants
1.take in Carbon Dioxide
2.take in Oxygen
3.give off Carbon Dioxide
4.give off Oxygen
Meteorology is the study of?
1.seasons
2.atmosphere
3.air and sounds
4.winds and clouds
Mitochondria contain their own supply of
1.DNA
2.Amino acids
3.Vitamins
4.Oxygen
Quartz is a crystalline mineral composed of Silicon and _____ atoms.
1.Carbon
2.Hydrogen
3.Oxygen
4.Aluminum
Sound waves from a loudspeaker are caused by
1.frequency
2.vibrations
3.pitch
4.amplitude
The bodyguard of the Earth is ________ that save the Earth from many Comets and Asteroids.
1.Mars
2.Saturn
3.Uranus
4.Jupiter
The device used to convert Alternate Current into Direct Current is called
1.Anemometer
2.Battery
3.Galvanometer
4.Rectifier
The device used to measure movements of the heart is
1.Cardiograph
2.Seismograph
3.Hydrometer
4.Hygrometer
The energy value of food is measured in
1.Joule
2.Calories
3.Tesla
4.Proteins
The first chemical explosive, Gunpowder, is a mixture of
1.Sulfur, Charcoal and Nitrogen Oxide
2.Sulfur, Charcoal, and Potassium Nitrate
3.Sulfur and Charcoal
4.Charcoal and Potassium Nitrate
The fourth state of matter is
1.Water
2.Salts
3.Vapours
4.Plasma
The gas, commonly known as laughing gas, is
1.Cabon Dioxide
2.Sulfur Dioxide
3.Nitrous Oxide
4.Sodium Oxide
The good sources of iodine are
1.green leafy vegetables
2.seeds
3.fresh vegetables and fruits
4.sea foods
The good sources of Vitamin-A are
1.green leafy vegetables
2.seeds
3.fresh vegetables and fruits
4.sea foods
The good sources of Vitamin-B Complex are
1.green leafy vegetables
2.seeds
3.fresh vegetables and fruits
4.sea foods
The good sources of Vitamin-C are
1.green leafy vegetables
2.seeds
3.fresh vegetables and fruits
4.sea foods
The guitar has __________ strings.
1.4
2.5
3.6
4.7
The instrument used to measure wind speed is
1.Anemometer
2.Barometer
3.Hydrometer
4.Hygrometer
The natural fats and oils are composed of
1.Carbon, Hydrogen and Oxygen
2.Carbon, Hydrogen and Nitrogen
3.Carbon, Oxygen and Nitrogen
4.Hydrogen, Oxygen and Nitrogen
The number of oscillations per second is called the
1.hertz
2.waves
3.pitch
4.frequency
The planets visible to us without using a telescope are
1.3
2.4
3.5
4.6
The principal constituent of the atmosphere of the Earth is
1.Oxygen
2.Carbon
3.Hydrogen
4.Nitrogen
The SI unit of electric current is
1.Coulomb
2.Ampere
3.Volt
4.Watt
The SI unit of Heat is
1.Watt
2.Volt
3.Joule
4.Newton
The source of oxygen in photosynthesis is
1.water
2.salts
3.minerals
4.glucose
The unit used to measure magnetic flux is
1.pascal
2.farad
3.weber
4.henry
The unit used to measure Pressure is
1.pascal
2.newton
3.watt
4.tesla
There are __________ methods of heat transfer.
1.3
2.4
3.5
4.6
Water covers __________ of the Earths surface.
1.60%
2.65%
3.70%
4.75%
What is Dry Ice?
1.Solid Oxygen
2.Solid Carbon Dioxide
3.Solid Hydrogen
4.Solid Nitrogen
Which are the three primary colours?
1.White, Black, Blue
2.Red, Yellow, Blue
3.Red, Orange, Blue
4.Red, Green, Blue
Which from the following is NOT a method of heat transfer?
1.Conduction
2.Convection
3.Radiation
4.All are methods of heat transfer
Who is considered the founder of meteorology?
1.Aristotle
2.Plato
3.Einstein
4.Newton
Wind energy is the __________ energy.
1.Potential
2.Transverse
3.Kinetic
4.Mechanical
__________ are called the powerhouses of the cell.
1.Mitochondria
2.Vesicles
3.Lungs
4.Liver