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