Section A: Biology (Ecology, Physiology & Environment)
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Which of the following is an abiotic factor in an ecosystem?
A. Grass
B. Soil pH
C. Goat
D. Mushroom
Answer: B. Soil pH -
The functional unit of the kidney is called:
A. Neuron
B. Alveolus
C. Nephron
D. Villi
Answer: C. Nephron -
The green pigment in plants responsible for photosynthesis is:
A. Hemoglobin
B. Chlorophyll
C. Carotene
D. Xanthophyll
Answer: B. Chlorophyll -
Which of the following organisms is a decomposer?
A. Goat
B. Fungus
C. Grass
D. Hawk
Answer: B. Fungus -
Which blood cells are responsible for fighting diseases?
A. Red blood cells
B. White blood cells
C. Platelets
D. Plasma cells
Answer: B. White blood cells -
The process by which plants lose water through the stomata is called:
A. Respiration
B. Photosynthesis
C. Transpiration
D. Absorption
Answer: C. Transpiration -
Which part of the human digestive system is mainly responsible for nutrient absorption?
A. Stomach
B. Large intestine
C. Small intestine
D. Pancreas
Answer: C. Small intestine -
Which of the following organisms is a producer in a food chain?
A. Lion
B. Grasshopper
C. Maize plant
D. Vulture
Answer: C. Maize plant -
The blood vessel that carries blood away from the heart is the:
A. Vein
B. Artery
C. Capillary
D. Venule
Answer: B. Artery -
The excretory product of plants that is essential for humans is:
A. Carbon dioxide
B. Oxygen
C. Urea
D. Sweat
Answer: B. Oxygen
Section B: Chemistry (Matter, Solutions & Reactions)
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The smallest particle of an element that takes part in a chemical reaction is:
A. Atom
B. Molecule
C. Ion
D. Compound
Answer: A. Atom -
Which of the following is a mixture?
A. Distilled water
B. Pure gold
C. Air
D. Sodium chloride
Answer: C. Air -
The pH of a neutral solution is:
A. 7
B. 1
C. 14
D. 0
Answer: A. 7 -
Which gas turns lime water milky?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Answer: C. Carbon dioxide -
Rusting of iron is a chemical process involving:
A. Iron and nitrogen
B. Iron, oxygen, and water
C. Iron and carbon dioxide
D. Iron and hydrogen
Answer: B. Iron, oxygen, and water -
Which of the following is an example of a chemical change?
A. Melting of ice
B. Evaporation of water
C. Burning of paper
D. Dissolving sugar in water
Answer: C. Burning of paper -
The number of protons in an atom is equal to its:
A. Mass number
B. Atomic number
C. Neutron number
D. Electron number
Answer: B. Atomic number -
Which of these is a noble gas?
A. Oxygen
B. Nitrogen
C. Neon
D. Carbon
Answer: C. Neon -
The process of separating crude oil into useful fractions is called:
A. Distillation
B. Chromatography
C. Filtration
D. Fractional distillation
Answer: D. Fractional distillation -
Which acid is found in the stomach?
A. Nitric acid
B. Hydrochloric acid
C. Sulphuric acid
D. Acetic acid
Answer: B. Hydrochloric acid
Section C: Physics (Energy, Motion & Electricity)
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The unit of force is:
A. Watt
B. Newton
C. Joule
D. Pascal
Answer: B. Newton -
Which of the following is a renewable source of energy?
A. Coal
B. Natural gas
C. Solar energy
D. Petroleum
Answer: C. Solar energy -
The force that opposes motion between two surfaces in contact is:
A. Tension
B. Gravity
C. Friction
D. Thrust
Answer: C. Friction -
The instrument used to measure electric current is:
A. Voltmeter
B. Ammeter
C. Thermometer
D. Hygrometer
Answer: B. Ammeter -
Sound waves are classified as:
A. Transverse waves
B. Longitudinal waves
C. Electromagnetic waves
D. Torsional waves
Answer: B. Longitudinal waves -
The energy possessed by a moving body is called:
A. Potential energy
B. Kinetic energy
C. Chemical energy
D. Nuclear energy
Answer: B. Kinetic energy -
Which color of light has the shortest wavelength?
A. Red
B. Green
C. Violet
D. Yellow
Answer: C. Violet -
An object is said to float in water if:
A. Its density is greater than water
B. Its density is less than water
C. It is heavier than water
D. It is lighter than air
Answer: B. Its density is less than water -
Which of the following devices converts chemical energy into electrical energy?
A. Generator
B. Solar panel
C. Battery
D. Transformer
Answer: C. Battery -
The S.I. unit of power is:
A. Joule
B. Watt
C. Pascal
D. Newton
Answer: B. Watt
Section D: General & Applied Science
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Which layer of the atmosphere contains the ozone layer?
A. Troposphere
B. Stratosphere
C. Mesosphere
D. Thermosphere
Answer: B. Stratosphere -
Which of these diseases is caused by a virus?
A. Malaria
B. Tuberculosis
C. Measles
D. Cholera
Answer: C. Measles -
The main source of vitamin D for humans is:
A. Milk
B. Fish
C. Sunlight
D. Meat
Answer: C. Sunlight -
Which of the following is a non-metal?
A. Sodium
B. Calcium
C. Sulphur
D. Aluminium
Answer: C. Sulphur -
Which of these is an example of a first-class lever?
A. Wheelbarrow
B. Nutcracker
C. Scissors
D. Fishing rod
Answer: C. Scissors -
Which part of a plant is mainly responsible for anchoring it in the soil?
A. Root
B. Stem
C. Leaf
D. Flower
Answer: A. Root -
Which of the following is a greenhouse gas?
A. Oxygen
B. Methane
C. Nitrogen
D. Argon
Answer: B. Methane -
The process of heat transfer that requires no medium is:
A. Conduction
B. Convection
C. Radiation
D. Evaporation
Answer: C. Radiation -
Which of the following is NOT a characteristic of living things?
A. Respiration
B. Movement
C. Photosynthesis
D. Reproduction
Answer: C. Photosynthesis -
Which mineral deficiency causes goiter?
A. Calcium
B. Iodine
C. Iron
D. Potassium
Answer: B. Iodine