Problem:OPTIONS:
- summer end
- before thunderstorms
- The area was once underwater
- dry and hot
- It used to be covered by water
- never
- outer space
- under water

Fact 1: Cold fronts cause thunderstorms as they pass by. Fact 2: Fog is common in the cold air ahead of the front. Given the two facts above, when is fog common?
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A: before thunderstorms

Problem:OPTIONS:
- heat energy
- direct energy
- Energy
- massive damage
- rays or beams
- antibodies
- Energy.
- Chemical energy

Fact 1: Antigens are found on cancer cells and the cells of transplanted organs. Fact 2: Antibody production is triggered by antigens. Given the two facts above, what do cancer cells produce?
****
A: antibodies

Problem:OPTIONS:
- camels
- oak
- Spruce
- fens
- Trees
- burrs
- apples
- vines

Fact 1: Plants that shed their leaves seasonally each year are called deciduous plants. Fact 2: Vines are perennial, deciduous climbing plants. Given the two facts above, what sheds their leaves seasonally each year?
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A: vines

Problem:OPTIONS:
- Earth orbiting the Sun
- an organism's body
- Veins and arteries.
- the rest of the body
- By wind and rain
- 35-65 years old
- major threat to health
- Decrease bodily water

Fact 1: Menopause occurs when menstruation stops occurring, usually in middle adulthood. Fact 2: Middle adulthood begins around age 35 to 40 and continues through age 65 to 70. Given the two facts above, in what timeframe does menopause typically occur?
****
A:
35-65 years old