*Question*
Answer the following question given this paragraph: The dense, iron core forms the center of the Earth. Scientists know that the core is metal. The inner core is solid, and the outer core is molten. Here are some of the reasons they know this:. Q: Which layer of the earth is molten? Choices: - the inner core - the metallic core - the mantle - the outer core A:
**Answer**
the outer core

*Question*
Answer the following question given this paragraph: Lysosomes are like the recycling trucks that carry waste away from the factory. Lysosomes have digestive enzymes that break down old molecules into parts that can be recycled. Q: Lysosomes have what type of enzymes that break down old molecules into parts that can be recycled? Choices: - corrosive - bacterial - probiotics - digestive A:
**Answer**
digestive

*Question*
Answer the following question given this paragraph: Objects in motion that return to the same position after a fixed period of time are said to be in harmonic motion. Objects in harmonic motion have the ability to transfer some of their energy over large distances. They do so by creating waves in a medium. Imagine pushing up and down on the surface of a bathtub filled with water. Water acts as the medium that carries energy from your hand to the edges of the bathtub. Waves transfer energy over a distance without direct contact with the initial source. Since waves are disturbances in an existing medium, they are considered phenomena and not actual objects. Q: Objects in motion that return to the same position after a fixed period of time are said to be in what? Choices: - resonant motion - kinetic motion - homeostasis - harmonic motion A:
**Answer**
harmonic motion

*Question*
Answer the following question given this paragraph: All living things depend on their environment to supply them with what they need, including food, water, and shelter. Their environment consists of physical factorssuch as soil, air, and temperatureand also of other organisms. An organism is an individual living thing. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive. For example, living things that cannot make their own food must eat other organisms for food. Other interactions between living things include symbiosis and competition. Q: In an environment, symbiosis, competition, and relying on other organisms for food are examples of what? Choices: - collaboration - commensalism - adaptation - interaction A:
**Answer**
interaction