Which one of the following is called stomata?
A)
A dry leaf
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B)
Photosynthesis process
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C)
Root of the plants
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D)
Tiny holes on the lower surface of leaf
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E)
None of these
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Which one of the following parts is responsible for absorbing water and minerals from soil?
A)
Xylem
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B)
Phloem
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C)
Stem
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D)
Leaf
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E)
None of these
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Which one of the following acids is secreted by stomach for food digestion?
A)
Sulphuric acid
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B)
Hydrochloric acid
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C)
Nitric acid
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D)
All of these
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E)
None of these
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The vitamins are either water soluble or fat soluble. Which one of the following options is correct about the categorization of vitamins as water and fat soluble?
A)
Water soluble vitamins: Vitamin B, Vitamin C Fat soluble vitamins: Vitamin A, Vitamin D, Vitamin E, Vitamin K
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B)
Water soluble vitamins: Vitamin A, Vitamin D, Vitamin E, Vitamin K Fat soluble vitamins: Vitamin B, Vitamin C
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C)
Water soluble vitamins: Vitamin D, Vitamin E, Vitamin C Fat soluble vitamins: Vitamin A, Vitamin B, Vitamin K
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D)
Fat soluble vitamins: Vitamin A, Vitamin B, Vitamin C Water soluble vitamins: Vitamin D, Vitamin E, Vitamin K
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E)
None of these
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Which one of the following animals is useful for producing wool?
A)
Cat
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B)
Lion
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C)
Deer
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D)
Sheep
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E)
None of these
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Which one of the following product is obtained form the plant shown in the figure given below?
A)
Cotton
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B)
Jute
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C)
Sisal
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D)
Wool
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E)
None of these
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Rayon is known as synthetic fiber. The raw materials for making of rayon is obtained from which one of the following sources?
A)
Cotton plant
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B)
Wood pulp
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C)
Sheep
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D)
Sisal
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E)
None of these
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Which one of the following option is correct regarding fibers?
A)
Nylon is man-made fiber
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B)
Cotton is man made fiber
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C)
Jute is man made fiber
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D)
Wool is man made fiber
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E)
None of these
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What is the boiling point of water?
A)
\[0{}^\circ C\]
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B)
\[10{}^\circ C\]
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C)
\[37{}^\circ C\]
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D)
\[100{}^\circ C\]
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E)
None of these
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Which one of the following temperature is the lower fixed point on the Kelvin scale?
A)
\[243{}^\circ K\]
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B)
\[234{}^\circ K\]
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C)
\[273{}^\circ K\]
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D)
All of these
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E)
None of these
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Gas expands with the absorption of heat. Which kind of expansion is noticed during the thermal expansion of the gases?
A)
Linear expansion
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B)
Volumetric expansion
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C)
Isotopic expansion
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D)
All of these
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E)
None of these
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Why do we use aluminum metal for making utensils for cooking?
A)
Because it is a good insulator of heat
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B)
Because it is a good conductor of heat
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C)
Because it is good conductor of electricity
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D)
All of these
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E)
None of these
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Every fruits contain acid. Name the acid which is present in lemon?
A)
Acetic acid
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B)
Nitric acid
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C)
Citric acid
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D)
Sulphuric acid
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E)
None of these
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The salt, which form a neutral solution on dissolving into water are called neutral salt. Choose the neutral salt from the following?
A)
Nitrogen sulphide
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B)
Sodium chloride
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C)
Ammonium chloride
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D)
Ammonium sulphate
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E)
None of these
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If the pH value of a solution is 10, then what is the nature of the solution?
A)
Acidic
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B)
Basic
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C)
Salt
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D)
All of these
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E)
None of these
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Which one of the following subatomic particles are exchanged from one atom to another during a chemical reaction?
A)
Neutrons
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B)
Protons
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C)
Electrons
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D)
All of these
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E)
None of these
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Name the element whose atomic number is 20.
A)
Na
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B)
P
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C)
K
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D)
Ca
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E)
None of these
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Electrolytes are formed by which of the following elements?
A)
Water and sugar
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B)
Water and mercury
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C)
Water and salt
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D)
All of these
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E)
None of these
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Which one of the following is the most common reason for the causing of days and night on the earth?
A)
Distance between the earth and the moon
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B)
Distance between the earth and the Sun
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C)
Rotation of the earth
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D)
Static state of the sun
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E)
None of these
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Which one of the following is the top most layer of the soil?
A)
Horizon B
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B)
Horizon C
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C)
Horizon D
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D)
Horizon A
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E)
None of these
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Maximum rainfall is recorded in which one of the following climate?
A)
Tropical
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B)
Temperate
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C)
Polar climate
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D)
Desert climate
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E)
None of these
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Mixing of unwanted substances in the air is called:
A)
Soil pollution
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B)
Land pollution
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C)
Air pollution
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D)
All of these
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E)
None of these
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When glucose is oxidized in absence of oxygen which one of the following may be the end product?
A)
Lactic acid
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B)
Ethanol
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C)
Carbon dioxide
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D)
All of these
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E)
None of these
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Codi: Plants produce carbon dioxide during respiration. Jack: Only animals produce carbon dioxide. Whose statement is correct?
A)
Codi
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B)
Jack
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C)
Both are correct
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D)
Both are incorrect
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E)
None of these
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Which one of the following respiratory organs can receive oxygen dissolved in water?
A)
Lung
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B)
Skin
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C)
Gills
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D)
Root hair
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E)
None of these
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Which one of the following statements is not true?
A)
Water enters into xylem vessels through root hairs
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B)
Root hairs lie in between soil particles
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C)
The cells of xylem vessels have tapering end
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D)
Cells of xylem vessels are joined with open ends
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E)
None of these
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Which one of the following organs pumps the blood in the human body?
A)
Brain
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B)
Lung
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C)
Kidney
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D)
Heart
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E)
None of these
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Lymph absorb back into lymph capillaries through_____.
A)
Pores
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B)
Close ends
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C)
Open ends
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D)
Blood capillaries
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E)
None of these
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In which one of the following method of vegetative propagation the terms "scion and stock" are used?
A)
Cutting
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B)
Layering
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C)
Grafting
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D)
All of these
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E)
None of these
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Which one of the following parts of flower contains female sex cell?
A)
Ovary
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B)
Stigma
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C)
Filament
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D)
Anther
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E)
None of these
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How many chromosomes a female sex cell contains?
A)
23
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B)
46
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C)
44
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D)
52
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E)
None of these
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When a body moves around a fixed axis, the body is in _____
A)
Rectilinear motion
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B)
Circular motion
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C)
Rotatory motion
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D)
Periodic motion
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E)
None of these
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Which one of the following is true for the uniform speed?
A)
If speed of the object varies at different intervals of time, the object has uniform speed
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B)
If speed of the object is constant at different intervals of time, the object has uniform speed
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C)
If a moving object suddenly comes into rest, the object has uniform speed\
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D)
All of these
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E)
None of these
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Which one of the following kind of energy is produced when a charged particle moves?
A)
Electrical energy
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B)
Chemical energy
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C)
Light energy
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D)
Sound energy
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E)
None of these
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'The wire of greater resistance produces greater amount of heat energy'. Is the above statement true?
A)
Yes
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B)
No
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C)
Resistance has nothing to do with heat
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D)
All of these
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E)
None of these
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Two completely filled water bottles are turned upside down, two rubber tubes are connected at the mouth of the bottles. How the water will be released fast through connected rubber tubes?
A)
By putting them into cold water
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B)
By punching on the rubber tubes
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C)
By punching on the bottles
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D)
All of these
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E)
None of these
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The earth's atmosphere is layered according to the availability of gases, temperature and altitude. Which one of the following layers is found between the thermosphere and stratosphere?
A)
Troposphere
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B)
Exosphere
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C)
Mesosphere
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D)
All of these
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E)
None of these
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Which one of the following devices is used for the measurement of air pressure?
A)
Barometer
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B)
Thermometer
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C)
Potentiometer
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D)
All of these
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E)
None of these
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A small object is placed behind the larger object. Which one of the following parts of shadow covers the entire part of the smaller object?
A)
Penumbra
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B)
Umbra
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C)
Shadow of smaller object
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D)
All of these
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E)
None of these
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Which one of the following allows light to pass through it partially?
A)
Translucent
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B)
Opaque
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C)
Some transparent objects
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D)
All of these
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E)
None of these
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