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Nature's Significance
  • 1. What is the primary function of photosynthesis?
A) To produce carbon dioxide
B) To convert sunlight into energy
C) To absorb water
D) To consume glucose
  • 2. What percentage of Earth's surface is covered by oceans?
A) 71%
B) 50%
C) 80%
D) 30%
  • 3. Which gas do plants primarily absorb during photosynthesis?
A) Carbon dioxide
B) Methane
C) Oxygen
D) Nitrogen
  • 4. What is biodiversity?
A) Ocean pollution
B) Variety of life in an ecosystem
C) Climate change effects
D) Soil quality
  • 5. What is the largest rainforest in the world?
A) Sundarbans
B) Taiga
C) Congo rainforest
D) Amazon rainforest
  • 6. What role do bees play in ecosystems?
A) Seed dispersal
B) Pollination
C) Water collection
D) Soil digging
  • 7. Which animal is known as a keystone species in many ecosystems?
A) Honeybee
B) Grey wolf
C) Sea otter
D) Bald eagle
  • 8. What type of animal is the result of the warming of oceans?
A) Polluted waters
B) Coral bleaching
C) Overfishing
D) Invasive species
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