Exam 1: Earth As a Planet

Earth is not the only planet with regolith.What makes Earth's regolith different from the regolith on other planets and satellites?

The figure below depicts the evolution of the solar system.During which stage would there be the onset of significant accretion?

Throughout Earth's history,though the processes that occur on Earth have not changed,the _____.

The figure below depicts the evolution of the solar system.During which stage would the process of nuclear fusion begin?

Which one of the following Earth materials is not part of the regolith?

Earth is a fairly close approximation of a closed system.

______is the process by which the terrestrial planets separated into concentric layers of differing chemical composition.

The middle compositional layer of Earth,the______,lies between the core and the crust.

The illustration below shows four stages in the development of the solar system.Describe the changes that take place in stage 2 of this evolution.

Activity on Earth's surface has erased all traces of ancient meteorite impacts,such as those still visible on the moon.

_____ geology is concerned with the formation,occurrence,and search for valuable mineral deposits.

How do Mars and Earth differ?

Urban geographers have applied the systems concept to the study of cities.Explain why this is useful approach.Can you think of another example in which a systems approach might be useful in studying a human system,or the impact of human activities on a natural system?

The "plates" in Earth's plate tectonics are made of fragments of _____.

Which one of the following is a good example of a closed system?

A _____________system is one that does not allow matter to pass through its boundaries,but may allow energy to do so.

The figure below shows the four stages of the development of the solar system.Summarize each of these stages.

Since 2006,Pluto and Ceres have been classified as__________________ .

Which of the inner planets has a regolith that is largely the product of weathering?

The ______ hypothesis states that our solar system coalesced from a swirling cloud of interstellar dust and gas.