Chain-of-thought: Biodiversity increases the productivity and stability of ecosystems. Marine ecosystems also act as stabilizers of global systems especially our climate. Biodiversity increases the productivity and stability of the entire global system.
Q: What increases the productivity and stability of the entire global system?
Options:
- (A) important habitats
- (B) Plants growth
- (C) solar system
- (D) animals
- (E) biodiversity
- (F) environment
- (G) bottlenecks
- (H) power stations
A: (E)
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Chain-of-thought: Endospores are commonly found in soil and water. Endospore-forming bacteria produce a unique resting cell called an endospore . Bacterial resting cells are often found in soil and water.
Q: A type of resting cell from what type of organism is often found in soil and water?
Options:
- (A) fungi
- (B) creature
- (C) organic thing
- (D) entity
- (E) bacteria
- (F) lmestone
- (G) Most plants
- (H) vegetation
A: (E)
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Chain-of-thought: Coral reefs provide food and shelter to many ocean organisms. Organisms or living beings are literally things that are alive. Coral reefs provide food and shelter to many ocean living beings.

Q: Coral reefs provide what to many living beings in the ocean
Options:
- (A) Chemical energy
- (B) salt and water.
- (C) shelter and amusement
- (D) survival
- (E) important habitats
- (F) food and water
- (G) water and fun
- (H) food and shelter
A: (H)
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