Major Competitive Exams

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Q. What is the primary cause of ocean acidification?
  • A. Plastic pollution
  • B. Increased CO2 absorption
  • C. Heavy metal contamination
  • D. Thermal pollution
Q. What is the primary cause of ocean currents?
  • A. Wind patterns
  • B. Earth's rotation
  • C. Temperature differences
  • D. Salinity differences
Q. What is the primary cause of sediment transport in rivers?
  • A. Gravity
  • B. Wind
  • C. Human activity
  • D. Temperature changes
Q. What is the primary cause of surface tension in liquids?
  • A. Cohesive forces
  • B. Adhesive forces
  • C. Gravitational forces
  • D. Electromagnetic forces
Q. What is the primary cause of the greenhouse effect?
  • A. Ozone depletion
  • B. Increased solar radiation
  • C. Trapping of heat by greenhouse gases
  • D. Deforestation
Q. What is the primary cause of the phenomenon known as capillarity?
  • A. Cohesion
  • B. Adhesion
  • C. Viscosity
  • D. Density
Q. What is the primary cause of the phenomenon of buoyancy?
  • A. Surface tension
  • B. Pressure difference
  • C. Viscosity
  • D. Density
Q. What is the primary cause of the phenomenon of capillarity?
  • A. Cohesion
  • B. Adhesion
  • C. Viscosity
  • D. Density
Q. What is the primary cause of tides on Earth? (2019)
  • A. Wind
  • B. Earth's rotation
  • C. Gravitational pull of the moon
  • D. Ocean currents
Q. What is the primary cause of tuberculosis? (2020)
  • A. Bacteria
  • B. Virus
  • C. Fungi
  • D. Protozoa
Q. What is the primary cause of viscosity in fluids?
  • A. Molecular interactions
  • B. Temperature
  • C. Pressure
  • D. Density
Q. What is the primary cause of wind?
  • A. Earth's rotation
  • B. Temperature differences
  • C. Humidity differences
  • D. Pressure differences
Q. What is the primary challenge faced by virtual teams compared to traditional teams? (2023)
  • A. Lack of technology.
  • B. Difficulty in establishing personal connections.
  • C. Increased productivity.
  • D. Easier communication.
Q. What is the primary characteristic of a K-selected species? (2023)
  • A. High reproductive rate
  • B. Short lifespan
  • C. High parental care
  • D. Rapid growth
Q. What is the primary characteristic of a redox reaction? (2023)
  • A. Transfer of protons
  • B. Transfer of electrons
  • C. Change in temperature
  • D. Change in pressure
Q. What is the primary characteristic of adsorption? (2023)
  • A. It is a bulk phenomenon.
  • B. It involves a chemical reaction.
  • C. It is a surface phenomenon.
  • D. It requires high temperature.
Q. What is the primary characteristic of alkaline earth metals? (2020)
  • A. They are highly reactive
  • B. They have a +2 oxidation state
  • C. They are gases at room temperature
  • D. They form covalent bonds
Q. What is the primary characteristic of amorphous solids? (2023)
  • A. Long-range order
  • B. Short-range order
  • C. Definite melting point
  • D. High thermal conductivity
Q. What is the primary characteristic of Baroque art that emerged in the 17th century?
  • A. Emphasis on emotion and movement
  • B. Use of geometric shapes
  • C. Focus on minimalism
  • D. Incorporation of abstract forms
Q. What is the primary characteristic of gases compared to solids and liquids? (2023)
  • A. Definite shape
  • B. Definite volume
  • C. High compressibility
  • D. Low density
Q. What is the primary characteristic of gases? (2023)
  • A. Definite shape
  • B. Definite volume
  • C. Compressibility
  • D. Incompressibility
Q. What is the primary characteristic of insulators? (2019)
  • A. Conduct electricity
  • B. Absorb heat
  • C. Prevent electricity flow
  • D. Reflect light
Q. What is the primary characteristic of liquids that distinguishes them from solids?
  • A. Definite shape
  • B. Definite volume
  • C. Incompressibility
  • D. Fluidity
Q. What is the primary characteristic of metals? (2019)
  • A. Brittleness
  • B. Luster
  • C. Dullness
  • D. Insulation
Q. What is the primary characteristic of non-metals?
  • A. Good conductors of heat
  • B. High density
  • C. Brittleness
  • D. Luster
Q. What is the primary characteristic that distinguishes living organisms from non-living things? (2020)
  • A. Ability to reproduce
  • B. Ability to move
  • C. Ability to grow
  • D. Ability to respond to stimuli
Q. What is the primary characteristic that distinguishes metals from non-metals? (2019)
  • A. Luster
  • B. Brittleness
  • C. Conductivity
  • D. Density
Q. What is the primary characteristic that distinguishes solids from liquids? (2021)
  • A. Solids have a definite shape and volume
  • B. Liquids have a definite shape and volume
  • C. Solids can flow
  • D. Liquids can be compressed easily
Q. What is the primary charge carrier in n-type semiconductors?
  • A. Holes
  • B. Electrons
  • C. Protons
  • D. Neutrons
Q. What is the primary charge carrier in P-type semiconductors?
  • A. Electrons
  • B. Holes
  • C. Protons
  • D. Neutrons
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