Problem:OPTIONS:
- wool
- precipitation
- hydrate their cells
- farmers
- valleys
- scattered light
- food and shelter
- They have thick fur

Fact 1: Precipitation falls on the windward side of the mountain range. Fact 2: Sheep tend to favour the windward side of a paddock. Given the two facts above, sheep tend to favor the side of a mountain with more:?
****
A: precipitation

Problem:OPTIONS:
- chemical messengers
- carbon monoxide
- Veins and arteries.
- bacterial messengers
- density
- kinetic energy
- electromagnetic energy
- matter vibrating

Fact 1: Endocrine hormones travel throughout the body in the blood. Fact 2: Hormones are the chemical messengers of the body's endocrine system. Given the two facts above, what travels throughout the body in the blood?
****
A: chemical messengers

Problem:OPTIONS:
- riding a bicycle
- An emergency lighting source.
- repair cells in the human body
- sleeping on the floor
- visiting a dam
- Something that take eight minutes to travel to the Earth
- Heating a metal filament.
- keeping food fresh for long periods of time

Fact 1: Arefrigerator is used for keeping food fresh for a long period of time. Fact 2: Refrigerators are major users of electricity. Given the two facts above, what requires a lot of electricity?
****
A: keeping food fresh for long periods of time

Problem:OPTIONS:
- fissures of hot, acidic water
- rays or beams
- Looking at sunglasses
- Looking at bright objects
- Looking at dark objects
- Looking at newspapers
- enormous damage to homes
- Light passing through water

Fact 1: Looking at bright objects has a negative impact on the eyes. Fact 2: Sunglasses help protect the eyes from glare off the river surfaces. Given the two facts above, what can sunglasses protect against?
****
A:
Looking at bright objects