A complete answer should be thorough and thoughtful.

• A complete answer should be thorough and thoughtful.
• You will be evaluated on your paragraph structure, punctuation, grammar, and content.
• An ideal response will include multiple paragraphs with three or more specific details to support your argument (interpretation).
• To demonstrate writing style, a submission should have a topic sentence, examples, and interpretation.

A.    Describe how Earth has changed through time and include aspects of the atmosphere, hydrosphere, and geosphere. Identify significant events since the formation of Earth and explain how they changed the environment and ecology.