1. What is the primary cause of the current biodiversity loss?
A)Volcanic eruptions
B)Human activity
C)Lunar cycles
D)Tidal waves
2. Which term describes the total variety of life on Earth?
A)Biomass
B)Biosphere
C)Ecosystem
D)Biodiversity
3. What happens when a species is completely gone from Earth?
A)Migration
B)Evolution
C)Extinction
D)Adaptation
4. Which of these is a major driver of habitat loss?
A)Wind patterns
B)Cloud formation
C)Deforestation
D)Ocean currents
5. What is a main factor contributing to the sixth mass extinction?
A)Increased rainfall
B)Solar eclipses
C)Magnetic shifts
D)Global warming
6. Pollution in the oceans is mostly caused by which material?
A)Plastic
B)Sand
C)Seaweed
D)Salt
7. Which group of animals is currently at high risk of extinction?
A)Garden insects
B)Pigeons
C)Domesticated cats
D)Amphibians
8. What is the study of interactions between living organisms?
A)Geology
B)Physics
C)Ecology
D)Chemistry
9. What do we call the area where an animal naturally lives?
A)Garage
B)Factory
C)Habitat
D)Highway
10. How does poaching affect biodiversity?
A)Increases oxygen
B)Cleans water
C)Reduces populations
D)Improves soil
11. Which gas is a major contributor to climate change?
A)Carbon dioxide
B)Neon
C)Argon
D)Helium
12. What is a 'hotspot' in conservation biology?
A)High species diversity
B)A city center
C)A desert area
D)A volcanic crater
13. Which practice helps protect endangered species?
A)Deforestation
B)Conservation
C)Urbanization
D)Industrialization
14. What is an invasive species?
A)Local bird
B)Hidden bacteria
C)Non-native species
D)Native plant
15. What is the main role of a protected nature reserve?
A)Start mining
B)Build roads
C)Save habitats
D)Allow hunting
16. What is the shape of the DNA molecule?
A)Flat square
B)Solid sphere
C)Double helix
D)Pyramid
17. Which scientist used X-ray diffraction to study DNA?
A)Galileo
B)Rosalind Franklin
C)Isaac Newton
D)Albert Einstein
18. Who are the famous duo credited with the DNA model?
A)Lewis and Clark
B)Smith and Jones
C)Hall and Oates
D)Watson and Crick
19. What does DNA carry in living organisms?
A)Water
B)Genetic info
C)Sugar
D)Heat
20. Which substance is the building block of DNA?
A)Plastic
B)Nucleotides
C)Gold
D)Iron
21. Where is DNA located in a cell?
A)Nucleus
B)Air
C)Surface
D)Water
22. What is the abbreviation for DNA?
A)Double nuclear array
B)Deoxyribonucleic acid
C)Direct natural atom
D)Deep nerve agent
23. What was Rosalind Franklin's famous image called?
A)Image X
B)Slide 99
C)Photo 51
D)Picture 10
24. Which base pairs with Adenine in DNA?
A)Salt
B)Thymine
C)Metal
D)Sugar
25. DNA determines an organism's what?
A)Age
B)Weight
C)Name
D)Traits
26. What year was the double helix model proposed?
A)1953
B)1800
C)1990
D)2020
27. Who shared the Nobel Prize for the DNA discovery?
A)Darwin
B)Franklin
C)Watson and Crick
D)Mendel
28. What holds the two strands of DNA together?
A)Tape
B)Glue
C)Hydrogen bonds
D)Steel wire
29. DNA is found in almost every what?
A)Stone
B)Living cell
C)Metal
D)Cloud
30. The discovery of DNA started a revolution in what?
A)Painting
B)Cooking
C)Genetics
D)Driving
31. What is the 24-hour cycle of our body called?
A)Weekly cycle
B)Seasonal shift
C)Circadian rhythm
D)Lunar phase
32. What is the main external cue for our biological clock?
A)Weight
B)Sound
C)Height
D)Light
33. Which hormone helps you fall asleep?
A)Sugar
B)Salt
C)Insulin
D)Melatonin
34. What happens when you travel across time zones?
A)Hunger
B)Flu
C)Growth
D)Jet lag
35. What is the primary function of sleep?
A)Running
B)Restoration
C)Talking
D)Eating
36. Which brain region controls the sleep cycle?
A)Kidney
B)Liver
C)Hypothalamus
D)Stomach
37. What is the ideal amount of sleep for an adult?
A)20 hours
B)1-2 hours
C)0 hours
D)7-9 hours
38. Blue light from screens affects which hormone?
A)Adrenaline
B)Estrogen
C)Calcium
D)Melatonin
39. What happens to your body temperature while you sleep?
A)Boils
B)Increases
C)Decreases
D)Stays same
40. What is REM sleep known for?
A)Running
B)Walking
C)Digestion
D)Dreaming
Answer Key
1-B
2-D
3-C
4-C
5-D
6-A
7-D
8-C
9-C
10-C
11-A
12-A
13-B
14-C
15-C
16-C
17-B
18-D
19-B
20-B
21-A
22-B
23-C
24-B
25-D
26-A
27-C
28-C
29-B
30-C
31-C
32-D
33-D
34-D
35-B
36-C
37-D
38-D
39-C
40-D