*Question*
Answer the following question given this paragraph: The surface seismic waves do the most damage because they only travel along the surface of the ground. Q: What type of seismic waves do the most damage? Choices: - gravity - sunlight - tension - surface A:
**Answer**
surface

*Question*
Answer the following question given this paragraph: You may have seen this sign beforemaybe in a hospital. The sign means there is danger of radiation in the area. Radiation consists of particles and energy that are given off by radioactive isotopes, which have unstable nuclei. But you don't have to go to a hospital to be exposed to radiation. There is radiation in the world all around you. Q: Radioactive isotopes are characterized by an unstable what? Choices: - shell - proton - electrons - nuclei A:
**Answer**
nuclei

*Question*
Answer the following question given this paragraph: Covalent bonds are bonds in which atoms share rather than transfer electrons. Compounds with covalent bonds are called covalent compounds. Q: What do you call compounds that have covalent bonds? Choices: - reflectivity compounds - valence compound - ions - covalent compounds A:
**Answer**
covalent compounds

*Question*
Answer the following question given this paragraph: Q: The coordinated activities of the legume and the rhizobium bacteria depend on what between the partners? Choices: - electric signals - sight signals - fertilizer signals - chemical signals A:
**Answer**
chemical signals