Problem:OPTIONS:
- the Sun
- insects
- animals
- humans
- rocks
- air
- a fish
- people

Fact 1: Pressure receptors are found mainly in the skin. Fact 2: Animals have skin. Given the two facts above, what has pressure receptors?
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A: animals

Problem:OPTIONS:
- In the stem
- In the spines
- peachleaf willow
- scarce resources
- bamboo
- In the branches
- cactuses
- In the leaves

Fact 1: Acactus stem is used for storing water. Fact 2: Cactus species often grow in hot, dry deserts. Given the two facts above, where do plants that grow in hot, dry deserts store water?
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A: In the stem

Problem:OPTIONS:
- plants
- reproduction
- fish
- making
- cells
- Light
- mitosis
- photons

Fact 1: Photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves. Fact 2: Green plants are producers . Given the two facts above, photosynthesis is when what converts from carbon dioxide, water and solar energy into carbohydrates?
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A: plants

Problem:OPTIONS:
- Clean water
- Dehydration
- More oil
- chemical reaction
- Global warming
- forest is destroyed
- An ice age
- hyperthyroidism

Fact 1: Gases released during the use of fossil fuels causes global warming. Fact 2: Carbon dioxide is produced by the burning of fossil fuels such as coal, oil and natural gas. Given the two facts above, what does burning oil cause?
****
A:
Global warming