Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: What bond is a force of attraction between ions and atoms? Answer: chemical bond
[A]: A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons.

[Q]: Question: What type of ecosystem do polar bears live in? Answer: arctic
[A]: Polar Bears. Thick fur and a layer of blubber keep polar bears warm in their Arctic ecosystem. Why do you think their fur is white? Why might it be an adaptation in an Arctic biome?.

[Q]: Question: When the energy of the earthquake reaches shore, it forms a huge wave called? Answer: a tsunami
[A]:
When an earthquake occurs under the ocean, it sends waves through the water as well as the ground. When the energy of the earthquake reaches shore, it forms a huge wave called a tsunami.