Problem:OPTIONS:
- deadly and devastating
- Disease textbooks
- harmful substances
- Microscopic organisms
- Human thoughts
- destroying life
- Human emotions
- Created by a natural process.

Fact 1: Viruses cause many human diseases. Fact 2: Human viruses are created by natural process. Given the two facts above, something that can cause many human diseases can be what?
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A: Created by a natural process.

Problem:OPTIONS:
- Power plants
- ribosomes
- Earth
- body water
- loose dirt
- ocean water
- environment
- loose soil

Fact 1: Ribosomes are sites where proteins are made. Fact 2: Biomolecules covered include amino acids, proteins, enzymes, vitamins and hormones. Given the two facts above, biomolecules are made in where?
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A: ribosomes

Problem:OPTIONS:
- Dehydration
- lifting weights
- hypothyroidism
- prolonged thirst
- working out
- eating healthy
- smoking tobacco
- Abnormal cell growth

Fact 1: Smoking tobacco decreases stamina. Fact 2: Manual dexterity and physical stamina are vital. Given the two facts above, what decreases manual dexterity?
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A: smoking tobacco

Problem:OPTIONS:
- humans
- plants
- Heart rate
- surgery
- cells
- food
- animals
- the skin

Fact 1: Zinc has a positive impact on the healing of wounds. Fact 2: Wound healing Wound healing is a critical aspect of surgery. Given the two facts above, what can zinc have a positive impact on?
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A:
surgery