TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: Passage: An autoimmune disease is a disease in which the immune system attacks the body's own cells. Why this happens is not known for certain, but a combination of genetic and environmental factors are likely to be responsible. Type 1 diabetes is an example of an autoimmune disease. In this case, the immune system attacks cells of the pancreas. Two other examples are multiple sclerosis and rheumatoid arthritis. Answer: autoimmune

SOLUTION: What term describes a disease in which the immune system attacks the body's own cells?

PROBLEM: Passage: The combined gas law relates pressure, volume, and temperature of a gas. Answer: combines gas law

SOLUTION: Which law relates the pressure, volume, and temperature of a gas?

PROBLEM: Passage: A soil is a residual soil when it forms in place. Only about one third of the soils in the United States form this way. The material comes from the underlying bedrock. Residual soils form over many years since it takes a long time for solid rock to become soil. First, cracks break up the bedrock. This may happen due to ice wedging. Weathering breaks up the rock even more. Then plants, such as lichens or grasses, become established. They cause further weathering. As more time passes and more layers of material weather, the soil develops. Answer: residual soil

SOLUTION:
Soil that forms in place over a very long period is called what?