SCERT D. El. Ed 2026 - Environmental Science (EVS)

SCERT D. El. Ed 2026 – Environmental Science

SCERT D. El. Ed 2026 – Environmental Science

Science & EVS – Part 6

Q1. Plants adapted to live in dry environments are called:
  • A. Hydrophytes
  • B. Mesophytes
  • C. Xerophytes
  • D. Halophytes
Correct Answer: C. Xerophytes
Q2. Plants adapted to live in or on water are called:
  • A. Xerophytes
  • B. Mesophytes
  • C. Hydrophytes
  • D. Halophytes
Correct Answer: C. Hydrophytes
Q3. Spines of a cactus are modifications of:
  • A. Stems
  • B. Leaves
  • C. Roots
  • D. Flowers
Correct Answer: B. Leaves
Q4. In a flower, the male reproductive organ is the:
  • A. Stigma
  • B. Stamen
  • C. Pistil
  • D. Ovary
Correct Answer: B. Stamen
Q5. In a flower, the female reproductive organ is the:
  • A. Stamen
  • B. Anther
  • C. Pistil
  • D. Filament
Correct Answer: C. Pistil
Q6. Pollen grains are produced in the:
  • A. Stigma
  • B. Anther
  • C. Style
  • D. Ovule
Correct Answer: B. Anther
Q7. The transfer of pollen from the anther to the stigma is called:
  • A. Fertilisation
  • B. Pollination
  • C. Germination
  • D. Dispersal
Correct Answer: B. Pollination
Q8. Pollination of grasses is mainly done by:
  • A. Birds
  • B. Insects
  • C. Wind
  • D. Water
Correct Answer: C. Wind
Q9. After fertilisation, the ovule develops into a:
  • A. Fruit
  • B. Seed
  • C. Flower
  • D. Leaf
Correct Answer: B. Seed
Q10. Vegetative propagation of ginger occurs through:
  • A. Seeds
  • B. Rhizomes
  • C. Tubers
  • D. Bulbs
Correct Answer: B. Rhizomes
Q11. Budding is a method of asexual reproduction seen in:
  • A. Yeast
  • B. Mango
  • C. Rose
  • D. Cactus
Correct Answer: A. Yeast
Q12. Coconut seeds are mainly dispersed by:
  • A. Wind
  • B. Water
  • C. Animals
  • D. Explosion
Correct Answer: B. Water
Q13. Mushrooms and yeasts belong to which group of microorganisms?
  • A. Bacteria
  • B. Viruses
  • C. Fungi
  • D. Algae
Correct Answer: C. Fungi
Q14. Curd is formed from milk mainly by the action of:
  • A. Yeast
  • B. Lactobacillus bacteria
  • C. Penicillium fungus
  • D. Plasmodium
Correct Answer: B. Lactobacillus bacteria
Q15. Penicillin antibiotic was discovered in 1928 by:
  • A. Louis Pasteur
  • B. Edward Jenner
  • C. Alexander Fleming
  • D. Robert Koch
Correct Answer: C. Alexander Fleming
Q16. Yeast is used in baking because it produces:
  • A. Oxygen
  • B. Carbon dioxide
  • C. Hydrogen
  • D. Nitrogen
Correct Answer: B. Carbon dioxide
Q17. Rhizobium bacteria found in root nodules of leguminous plants help in:
  • A. Producing oxygen
  • B. Fixing atmospheric nitrogen
  • C. Causing diseases
  • D. Decomposing wood
Correct Answer: B. Fixing atmospheric nitrogen
Q18. Cholera is caused by which type of microorganism?
  • A. Virus
  • B. Bacterium (Vibrio cholerae)
  • C. Protozoan
  • D. Fungus
Correct Answer: B. Bacterium (Vibrio cholerae)
Q19. Malaria is caused by which microorganism?
  • A. Bacterium
  • B. Virus
  • C. Protozoan (Plasmodium)
  • D. Algae
Correct Answer: C. Protozoan (Plasmodium)
Q20. Tuberculosis (TB) is caused by:
  • A. Plasmodium
  • B. Mycobacterium tuberculosis
  • C. Rhinovirus
  • D. Penicillium
Correct Answer: B. Mycobacterium tuberculosis
Q21. Vaccines protect us by:
  • A. Killing pathogens directly
  • B. Stimulating the immune system to produce antibodies
  • C. Removing toxins from blood
  • D. Increasing body temperature
Correct Answer: B. Stimulating the immune system to produce antibodies
Q22. Heat is a form of:
  • A. Mass
  • B. Energy
  • C. Force
  • D. Charge
Correct Answer: B. Energy
Q23. Temperature is a measure of:
  • A. Total energy of a body
  • B. Average kinetic energy of particles
  • C. Mass of a body
  • D. Volume of a body
Correct Answer: B. Average kinetic energy of particles
Q24. Absolute zero on the Celsius scale corresponds to:
  • A. 0°C
  • B. -100°C
  • C. -273.15°C
  • D. -500°C
Correct Answer: C. -273.15°C
Q25. The conversion formula from Celsius to Kelvin is:
  • A. K = °C – 273
  • B. K = °C + 273
  • C. K = °C * 273
  • D. K = 273 / °C
Correct Answer: B. K = °C + 273
Q26. A clinical thermometer typically reads from:
  • A. -10°C to 110°C
  • B. 0°C to 100°C
  • C. 35°C to 42°C
  • D. 0°C to 50°C
Correct Answer: C. 35°C to 42°C
Q27. Normal human body temperature is approximately:
  • A. 32°C
  • B. 37°C
  • C. 42°C
  • D. 50°C
Correct Answer: B. 37°C
Q28. Heat transfer from the Sun to the Earth occurs mainly by:
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Diffusion
Correct Answer: C. Radiation
Q29. Conduction is the transfer of heat through:
  • A. Movement of fluid
  • B. Direct contact of particles
  • C. Electromagnetic waves
  • D. Sound waves
Correct Answer: B. Direct contact of particles
Q30. Convection occurs mainly in:
  • A. Solids
  • B. Fluids (liquids and gases)
  • C. Vacuum
  • D. Plasma only
Correct Answer: B. Fluids (liquids and gases)
Q31. Buildings in hot climates are often painted white because white surfaces:
  • A. Absorb more radiation
  • B. Reflect more radiation
  • C. Conduct more heat
  • D. Become magnetic
Correct Answer: B. Reflect more radiation
Q32. On the Celsius scale, the freezing and boiling points of water are:
  • A. 0°C and 100°C
  • B. 32°C and 212°C
  • C. 273 K and 373 K
  • D. -10°C and 90°C
Correct Answer: A. 0°C and 100°C

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