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Past Questions Library

Practice with a curated collection of JAMB, WAEC, NECO, and school exam questions. Filter by subject, year, or exam type.

10,710 questions available
Showing 901–950 of 10710 questions
Junior Certificate Examination Basic Science
Q901. Which of the following is a non-living component of a plant?
A Roots
B Leaves
C Soil
D Stem
Junior Certificate Examination Basic Science
Q902. What type of bond is formed when electrons are transferred from one atom to another?
A Covalent bond
B Metallic bond
C Ionic bond
D Hydrogen bond
Junior Certificate Examination Basic Science
Q903. Which of the following is a major component of the human skeleton?
A Brain
B Liver
C Femur
D Skin
Junior Certificate Examination Basic Science
Q904. What is the main function of the respiratory system in humans?
A To transport oxygen to cells
B To produce hormones
C To filter waste from blood
D To digest food
Junior Certificate Examination Basic Science
Q905. Which organ stores bile produced by the liver?
A Stomach
B Small intestine
C Gall bladder
D Pancreas
Junior Certificate Examination Basic Science
Q906. In the water cycle, what is the process by which water changes from a liquid to a gas?
A Condensation
B Evaporation
C Precipitation
D Sublimation
Junior Certificate Examination Basic Science
Q907. Which of the following is a non-renewable resource?
A Solar energy
B Wind energy
C Fossil fuel
D Biomass
Junior Certificate Examination Basic Science
Q908. What type of bond is formed when two atoms share electrons?
A Ionic bond
B Hydrogen bond
C Covalent bond
D Metallic bond
Junior Certificate Examination Basic Science
Q909. Which gas is most abundant in the Earth's atmosphere?
A Oxygen
B Nitrogen
C Carbon dioxide
D Argon
Junior Certificate Examination Basic Science
Q910. Which organ is responsible for filtering blood in the human body?
A Heart
B Kidney
C Liver
D Lungs
Junior Certificate Examination Basic Science
Q911. In a simple electric circuit, what component limits the flow of current?
A Battery
B Switch
C Resistor
D Conductor
Junior Certificate Examination Basic Science
Q912. What is the main source of energy for photosynthesis in plants?
A Soil minerals
B Sunlight
C Air temperature
D Water
Junior Certificate Examination Basic Science
Q913. Which of the following is an example of a physical change?
A Rusting of iron
B Burning wood
C Melting ice
D Digestion of food
Junior Certificate Examination Basic Science
Q914. What is the function of the nervous system?
A To pump blood
B To control body functions through signals
C To digest food
D To provide structural support
Junior Certificate Examination Basic Science
Q915. Which of these is a major component of plant cell walls?
A Cellulose
B DNA
C Ribosomes
D Mitochondria
Junior Certificate Examination Basic Science
Q916. What type of energy transformation occurs when a battery powers a light bulb?
A Chemical to mechanical
B Chemical to electrical
C Electrical to chemical
D Mechanical to chemical
Junior Certificate Examination Basic Science
Q917. Which layer of the Earth is the thickest?
A Crust
B Mantle
C Outer core
D Inner core
Junior Certificate Examination Basic Science
Q918. What is the main role of hemoglobin in blood?
A To fight infections
B To carry oxygen
C To clot blood
D To regulate pH
Junior Certificate Examination Basic Science
Q919. Which of the following is an example of a renewable resource?
A Coal
B Oil
C Wind
D Natural gas
Junior Certificate Examination Basic Science
Q920. In a chemical reaction, what is a catalyst?
A A substance that speeds up the reaction
B A substance that slows down the reaction
C A product of the reaction
D An inhibitor of the reaction
Junior Certificate Examination Basic Science
Q921. What does the term "trophic level" refer to in an ecosystem?
A The number of species in a habitat
B The position of an organism in the food chain
C The rate of reproduction of a species
D The size of an organism
Junior Certificate Examination Basic Science
Q922. Which of the following is a characteristic of a solid?
A Fixed shape and volume
B Fixed volume only
C Fixed shape only
D Variable shape and volume
Junior Certificate Examination Basic Science
Q923. What is the main function of chlorophyll in plants?
A To absorb water
B To provide structural support
C To capture light energy for photosynthesis
D To produce oxygen
Junior Certificate Examination Basic Science
Q924. Which of the following best describes a mixture?
A A pure chemical substance
B A combination of elements forming a compound
C A combination of substances that can be separated by physical means
D A substance that cannot be broken down into simpler substances
Junior Certificate Examination Basic Science
Q925. What is the main purpose of the circulatory system?
A To digest food
B To transport nutrients, gases, and waste
C To produce hormones
D To provide structural support
Junior Certificate Examination Basic Science
Q926. Which of the following is an example of a simple machine?
A Bicycle
B Lever
C Computer
D Automobile
Junior Certificate Examination Basic Science
Q927. In the context of environmental science, what does "biodiversity" refer to?
A The number of species in a particular area
B The amount of water in a lake
C The level of pollution in a river
D The temperature of a forest
Junior Certificate Examination Basic Science
Q928. Which of the following is a common method of heat transfer?
A Conduction
B Diffusion
C Osmosis
D Evaporation
Junior Certificate Examination Basic Science
Q929. What type of bond is formed between a metal atom and a non-metal atom?
A Covalent bond
B Ionic bond
C Hydrogen bond
D Metallic bond
Junior Certificate Examination Basic Science
Q930. Which of the following is NOT a characteristic of a living organism?
A Growth
B Reproduction
C Inertia
D Response to stimuli
Junior Certificate Examination Basic Science
Q931. What is the main function of the mitochondria in a cell?
A Protein synthesis
B Energy production
C Storage of genetic material
D Regulation of cell cycle
Junior Certificate Examination Basic Science
Q932. Which organ in the human body is primarily responsible for filtering blood?
A Liver
B Heart
C Kidneys
D Lungs
Junior Certificate Examination Basic Science
Q933. In the water cycle, evaporation occurs when:
A Water turns into ice
B Water condenses into droplets
C Water changes from liquid to gas
D Water flows into rivers
Junior Certificate Examination Basic Science
Q934. What is the chemical symbol for sodium?
A Na
B S
C So
D Sn
Junior Certificate Examination Basic Science
Q935. Which of the following is a non-metal?
A Iron
B Oxygen
C Copper
D Lead
Junior Certificate Examination Basic Science
Q936. In a simple electric circuit, the path that electrons travel is called the:
A Circuit
B Circuit path
C Conductor
D Loop
Junior Certificate Examination Basic Science
Q937. What type of bond is formed when two atoms share electrons?
A Ionic bond
B Covalent bond
C Metallic bond
D Hydrogen bond
Junior Certificate Examination Basic Science
Q938. Which gas is most abundant in the Earth's atmosphere?
A Oxygen
B Nitrogen
C Carbon dioxide
D Argon
Junior Certificate Examination Basic Science
Q939. What is the primary source of energy for the Earth’s weather systems?
A Moon
B Sun
C Earth’s core
D Ocean currents
Junior Certificate Examination Basic Science
Q940. Which of the following is an example of a renewable resource?
A Coal
B Petroleum
C Solar energy
D Natural gas
Junior Certificate Examination Basic Science
Q941. In biology, what is the term for the process by which plants convert sunlight into chemical energy?
A Respiration
B Photosynthesis
C Fermentation
D Transpiration
Junior Certificate Examination Basic Science
Q942. Which organelle contains ribosomes and is the site of protein synthesis?
A Nucleus
B Endoplasmic reticulum
C Golgi apparatus
D Lysosome
Junior Certificate Examination Basic Science
Q943. In the context of ecosystems, what does the term "biomass" refer to?
A The total number of species
B The amount of organic material
C The amount of water
D The soil depth
Junior Certificate Examination Basic Science
Q944. Which of the following is a characteristic of a chemical change?
A No change in color
B Formation of a precipitate
C No heat released
D No sound produced
Junior Certificate Examination Basic Science
Q945. The unit of electric current is called:
A Volt
B Ohm
C Ampere
D Watt
Junior Certificate Examination Basic Science
Q946. In the human digestive system, the small intestine is responsible for:
A Storage of bile
B Absorption of nutrients
C Production of insulin
D Secretion of hydrochloric acid
Junior Certificate Examination Basic Science
Q947. Which of the following is a function of the skeletal system?
A Producing hormones
B Pumping blood
C Protecting organs
D Filtering waste
Junior Certificate Examination Basic Science
Q948. Which law states that the force between two charged particles is proportional to the product of their charges and inversely proportional to the square of the distance between them?
A Newton’s law of gravitation
B Coulomb’s law
C Hooke’s law
D Ohm’s law
Junior Certificate Examination Basic Science
Q949. Which of the following is an example of a simple machine?
A Engine
B Wheel and axle
C Computer
D Telephone
Junior Certificate Examination Basic Science
Q950. The process by which plants lose water vapor through stomata is called:
A Respiration
B Transpiration
C Germination
D Pollination