*Question*
Q: Rain, snow, sleet, and hail are all examples of what? Read this paragraph and choose the correct option from the provided answers: Choices: - temperature - erosion - liquids - precipitation A:
**Answer**
precipitation

*Question*
Q: What is the closed circulatory system of humans and other vertebrates called? Read this paragraph and choose the correct option from the provided answers: Choices: - digestive system - reproductive system - respiratory system - cardiovascular system A:
**Answer**
cardiovascular system

*Question*
Q: What is the term for a particle outside the nucleus of an atom that has a negative electric charge? Read this paragraph and choose the correct option from the provided answers: An electron is a particle outside the nucleus of an atom that has a negative electric charge. The charge of an electron is opposite but equal to the charge of a proton. Atoms have the same number of electrons as protons. As a result, the negative and positive charges "cancel out. " This makes atoms electrically neutral. For example, a carbon atom has six electrons that "cancel out" its six protons. Choices: - proton - ion - neutron - electron A:
**Answer**
electron

*Question*
Q: What is the general name for a wave that travels along the surface of a medium? Read this paragraph and choose the correct option from the provided answers: A surface wave is a wave that travels along the surface of a medium. The medium is the matter through which the wave travels. Ocean waves are the best-known examples of surface waves. They travel on the surface of the water between the ocean and the air. Choices: - stack wave - speed wave - light wave - surface wave A:
**Answer**
surface wave