Which of the following two planets are most similar to Earth in terms of size and density?

Mid-ocean ridges are associated with ______________ plate boundaries

The Jovian planets formed in the outer portion of the solar system where volatiles such as water could condense to ice, allowing these planets to collect a greater proportion of ices and gases. 

Consider confined and unconfined aquifers. Of the two, which would you expect to be more susceptible to contamination? Please explain your reasoning to earn full credit.

At which of the following plate boundaries would you expect intermediate and felsic igneous rocks, such as andesite or rhyolite, to form?

What type of topography forms where the underlying bedrock is relatively soluble, forming features such as caves, sinkholes, and cliffs?

Some cities, such as San Francisco, experience large earthquakes on a regular basis. Here, in San Antonio, we do find faults in the bedrock but don’t experience large earthquakes. Why does San Francisco experience larger earthquakes compared to San Antonio?

Which of the following is NOT a criteria a substance must meet in order to be considered a mineral?

What event do geologists use to define the boundary between the Precambrian and Cambrian?

At which of the following plate boundaries does new oceanic crust form?