*Question*
Answer the following question given this paragraph: Ceres ( Figure below ) is a rocky body that orbits the Sun. It could be an asteroid or a planet. Before 2006, Ceres was thought to be the largest asteroid. Is it an asteroid? Ceres is in the asteroid belt. But it is by far the largest object in the belt. Ceres has such high gravity that it is spherical. Q: What explains the spherical shape of ceres, once thought to be the largest asteroid? Choices: - orbital plane - space debris - low gravity - high gravity A:
**Answer**
high gravity

*Question*
Answer the following question given this paragraph: Waves may reflect off an obstacle that they are unable to pass through. When waves are reflected straight back from an obstacle, the reflected waves interfere with the original waves and create standing waves . These are waves that appear to be standing still. Standing waves occur because of a combination of constructive and destructive interference. You can see animations of standing waves at the URLs below. Q: What do waves do when they are unable to pass through an object? Choices: - produce off - Roll over. - develop off - reflect off A:
**Answer**
reflect off

*Question*
Answer the following question given this paragraph: Solids can be divided into amorphous solids and crystalline solids. Q: Solids can be divided into amorphous solids and which other group? Choices: - morphous solids - distinct solids - acrystalline solids - crystalline solids A:
**Answer**
crystalline solids

*Question*
Answer the following question given this paragraph: The magnetic field produced by a current in a wire moves around the wire in concentric circles. More current creates a stronger magnetic field, and the direction of the current determines the direction of the magnetic field. Q: How does the magnetic field produced by a current in a wire move? Choices: - intermittently - slowly - counterclockwise - in concentric circles A:
**Answer**
in concentric circles