input: OPTIONS:
- radiation rods
- control neutrons
- particle rods
- control rods Now, answer this question: Answer the following question given this paragraph: The control rods play an important role in the modulation of the nuclear chain reaction (usually a collision of a neutron with uranium). Each collision produces more neutrons than were present initially. If left unsupervised, the reaction would soon get out of control. Rods are commonly made of boron or a number of metals and metal alloys. The purpose of the control rods is to absorb neutrons to regulate the rate of the chain reaction so that the water does not overheat and destroy the reactor. Q: What play an important role in the modulation of the nuclear chain reaction? A:
A:
output: control rods

Answer the following question given this paragraph: All reptiles are heterotrophs, and the majority eats other animals. Heterotrophs that eat only or mainly animals are called carnivores. Large carnivorous reptiles such as crocodilians are the top predators in their ecosystems. They prey on large birds, fish, deer, turtles, and sometimes farm livestock. Their powerful jaws are strong enough to crush bones and turtle shells. Smaller carnivorous reptilesincluding tuataras, snakes, and many lizardsare lower-level predators. They prey on small animals such as insects, frogs, birds, and mice. Q: What is the term for heterotrophs that eat only or mainly animals? A:

OPTIONS:
- parasites
- predators
- omnivores
- carnivores

Answer: carnivores

Problem: OPTIONS:
- variable
- important
- life saving
- insignificant
Q: Answer the following question given this paragraph: Q: What type of role does cartilage play in the human skeleton? A:
Answer: insignificant

Problem:OPTIONS:
- nucleus
- cytoplasm
- cellulose
- cytoskeleton

Answer the following question given this paragraph: The cytoskeleton provides the shape of the cell. Q: What provides the shape of a cell? A:
****
A: cytoskeleton

Answer the following question given this paragraph: isothermal expansion is a process occurring without a change in temperature. Q: Isothermal expansion is a process occurring without a change in? A:
OPTIONS:
- weight
- variation
- precipitation
- temperature
temperature

Answer the following question given this paragraph: Lead is still widely used in car batteries. In recent years, battery recycling is becoming very common - about 98% of car batteries a recycled today. The used batteries go to a processing plant where they are crushed and placed in a tank. The lead sinks to the bottom and can be separated, melted and used again. Plastic materials float to the top, are separated, and melted. The plastic can then be used in a number of applications. The battery acids are treated with chemicals to neutralize them before they are disposed of. Q: What substances in a car battery can be melted and recycled? A:
OPTIONS:
- lead and steel
- lead and sodium
- steel and sodium
- lead and plastic

Answer:
lead and plastic