Problem:OPTIONS:
- water vapor
- element
- salt and water.
- heater
- evaporation
- fur and fat
- aqueous solution
- sheet

Fact 1: When the body is hot , sweat is produced to cool the body. Fact 2: Sweat is released from sweat glands beneath the skin, and as it evaporates, the skin is cooled. Given the two facts above, what is used to cool the body when it is hot?
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A: evaporation

Problem:OPTIONS:
- Electrical energy
- scattered light
- hypothyroidism
- Time and energy
- harmful substances
- Cold fronts.
- Tropical
- heat energy

Fact 1: Cold fronts cause thunderstorms as they pass by. Fact 2: Thunderstorms Thunderstorms give birth to tornadoes. Given the two facts above, what causes tornadoes? ?
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A: Cold fronts.

Problem:OPTIONS:
- meteor showers
- heat production
- the sun's energy
- Generating heat
- Earth tilted on rotating axis
- Something with a head, thorax, and abdomen
- Earth vibrating
- lunar cycle

Fact 1: The Earth being tilted on its rotating axis causes seasons. Fact 2: Spring, summer, autumn, and winter are the seasons of the year. Given the two facts above, what causes spring, summer, autumn, and winter?
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A: Earth tilted on rotating axis

Problem:OPTIONS:
- earthworms
- a cuticle
- humans
- fish
- barnacles
- Most plants
- h2o
- roots

Fact 1: Annelids have the amazing capacity to regrow segments that break off. Fact 2: Annelids include earthworms and leeches. Given the two facts above, what can regrow segments that break off?
****
A:
earthworms