Q: What is ethanol produced from?
Options:
- (A) coal
- (B) sugar
- (C) SO2
- (D) animal fat
- (E) paper
- (F) salts
- (G) Trees
- (H) Oak
A: So, my chain of thought: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. Glucose, a type of sugar, is the body's fuel. Ethanol is produced by alcoholic fermentation of the sugar in corn or other plants. The answer is (B).

Q: What enables bones to perform movement?
Options:
- (A) contraction
- (B) Energy
- (C) sensory neurons
- (D) looseness
- (E) Chemical energy
- (F) Vibrates
- (G) fur and fat
- (H) layers of fat
A: So, my chain of thought: Muscles can only contract. Bones work with muscles to perform movement. Contraction enables bones to perform movement. The answer is (A).

Q: How does a squid produce?
Options:
- (A) Energy.
- (B) photons
- (C) voltage
- (D) sexually
- (E) Energy
- (F) bioaerosols
- (G) waves
- (H) food
A:
So, my chain of thought: Mollusks reproduce sexually. Interestingly, a squid is also a mollusk. Squids produce sexually. The answer is (D).