Major Competitive Exams

Q. What is the term for the genetic variation that occurs due to random changes in DNA? (1953)
  • A. Mutation
  • B. Selection
  • C. Migration
  • D. Isolation
Q. What is the term for the gradual increase in Earth's average temperature? (2023)
  • A. Climate change
  • B. Global warming
  • C. Greenhouse effect
  • D. Ozone depletion
Q. What is the term for the gradual increase in the Earth's average temperature due to human activities?
  • A. Global warming
  • B. Ozone depletion
  • C. Acidification
  • D. Eutrophication
Q. What is the term for the gradual increase in the Earth's average temperature? (2023)
  • A. Climate change
  • B. Global warming
  • C. Greenhouse effect
  • D. Ozone depletion
Q. What is the term for the gradual process of change and replacement in the species composition of a given area? (2022)
  • A. Succession
  • B. Evolution
  • C. Adaptation
  • D. Migration
Q. What is the term for the gradual process of change in species composition in a given area over time? (2019)
  • A. Succession
  • B. Evolution
  • C. Adaptation
  • D. Migration
Q. What is the term for the heat required to change a substance from solid to liquid at constant temperature? (2019)
  • A. Latent heat of fusion
  • B. Latent heat of vaporization
  • C. Specific heat
  • D. Sensible heat
Q. What is the term for the heat transfer that occurs due to the movement of a fluid?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. What is the term for the loss of a species from a particular habitat? (2020)
  • A. Extinction
  • B. Endangerment
  • C. Extirpation
  • D. Depletion
Q. What is the term for the loss of biodiversity due to habitat destruction? (2023)
  • A. Overexploitation
  • B. Pollution
  • C. Habitat fragmentation
  • D. Extinction
Q. What is the term for the loss of water vapor from the aerial parts of plants? (2020)
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Respiration
Q. What is the term for the lowest frequency of a sound wave in a harmonic series?
  • A. Fundamental frequency
  • B. Overtone
  • C. Harmonic
  • D. Resonance
Q. What is the term for the male gamete in flowering plants? (2023)
  • A. Ovule
  • B. Pollen grain
  • C. Seed
  • D. Ovary
Q. What is the term for the maximum amount of adsorbate that can be adsorbed on a given mass of adsorbent? (2020)
  • A. Adsorption capacity
  • B. Saturation point
  • C. Equilibrium concentration
  • D. Adsorption isotherm
Q. What is the term for the maximum amount of solute that can be adsorbed on a surface? (2021)
  • A. Saturation point
  • B. Adsorption capacity
  • C. Equilibrium constant
  • D. Surface tension
Q. What is the term for the maximum population size that an environment can sustain? (2020)
  • A. Carrying capacity
  • B. Population density
  • C. Biotic potential
  • D. Ecological footprint
Q. What is the term for the measure of a fluid's resistance to flow?
  • A. Density
  • B. Viscosity
  • C. Pressure
  • D. Temperature
Q. What is the term for the movement of water across a semi-permeable membrane?
  • A. Diffusion
  • B. Osmosis
  • C. Active transport
  • D. Facilitated diffusion
Q. What is the term for the movement of water through a plant against gravity?
  • A. Translocation
  • B. Transpiration
  • C. Capillarity
  • D. Hydrolysis
Q. What is the term for the phenomenon where a liquid's surface behaves like a stretched elastic membrane?
  • A. Surface Tension
  • B. Capillarity
  • C. Viscosity
  • D. Hydrostatic Pressure
Q. What is the term for the pressure exerted by a fluid at rest?
  • A. Dynamic pressure
  • B. Static pressure
  • C. Hydrostatic pressure
  • D. Atmospheric pressure
Q. What is the term for the pressure exerted by a vapor in equilibrium with its liquid?
  • A. Saturation pressure
  • B. Vapor pressure
  • C. Boiling point
  • D. Critical pressure
Q. What is the term for the process by which a liquid changes into a gas?
  • A. Condensation
  • B. Evaporation
  • C. Sublimation
  • D. Deposition
Q. What is the term for the process by which a liquid changes to a gas?
  • A. Condensation
  • B. Evaporation
  • C. Sublimation
  • D. Deposition
Q. What is the term for the process by which a liquid turns into vapor?
  • A. Condensation
  • B. Evaporation
  • C. Sublimation
  • D. Deposition
Q. What is the term for the process by which living organisms maintain a stable internal environment? (2019)
  • A. Metabolism
  • B. Homeostasis
  • C. Reproduction
  • D. Adaptation
Q. What is the term for the process by which plants absorb carbon dioxide from the atmosphere?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Evaporation
Q. What is the term for the process by which plants absorb carbon dioxide?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Evaporation
Q. What is the term for the process by which pollutants are absorbed by living organisms?
  • A. Bioaccumulation
  • B. Biodegradation
  • C. Biomagnification
  • D. Bioremediation
Q. What is the term for the process by which water vapor turns into liquid water?
  • A. Evaporation
  • B. Condensation
  • C. Precipitation
  • D. Transpiration
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