Bacteria causes what to be harmed?
Options:
- (A) plants
- (B) electronics
- (C) fossils
- (D) humans
- (E) animals
- (F) viruses
- (G) food
- (H) the skin
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Let's think first: Plants respond to daily and seasonal cycles and to disease. Plant diseases cause by bacteria. Plants respond to seasonal and daily cycles and to bacteria.... So the answer is [(A)]
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What breathes by relaxing the lungs?
Options:
- (A) mammals
- (B) tortoises
- (C) dogs
- (D) chickens
- (E) ducks
- (F) humans
- (G) crocodiles
- (H) animals
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Let's think first: Mammals breathe with the help of a diaphragm. Belly breathing uses the diaphragm, which helps relax the lungs. Mammals breathe by relaxing the lungs.... So the answer is [(A)]
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Harm to the respiratory and circulatory systems can come from 
Options:
- (A) Greenhouse gases
- (B) hydrocarbons
- (C) Sulfur dioxide
- (D) nitrogen oxides
- (E) burning coal
- (F) fossil fuels
- (G) emissions
- (H) Greenhouse gasses
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Let's think first: Air pollution harms the respiratory and circulatory systems. Nitrogen oxides cause air pollution. Nitrogen oxides harms the respiratory and circulatory systems.... So the answer is [(D)]
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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
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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: 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.... So the answer is [(H)]
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