Unit 1-Task 1: Pangaea Puzzle Flashcard

Front

What is Pangaea?

Back

Pangaea was an ancient supercontinent that existed around 200 million years ago, which eventually broke apart to form the continents we know today.

Front

What is an Ice Age?

Back

An Ice Age is a period in Earth's history when large areas were covered by glaciers and ice, leading to significantly colder global temperatures.

Front

What causes climate change?

Back

Climate change is primarily caused by the increase of greenhouse gases like carbon dioxide and methane in the atmosphere, which leads to a rise in global average temperatures.

Front

What is the significance of continental drift?

Back

Continental drift is the theory that continents move over geological time, which explains the distribution of fossils and geological features across different continents.

Front

What evidence did Wegener use to support his theory of continental drift?

Back

Wegener used evidence such as the similarity of fossils found on different continents, the fit of continental outlines, and geological similarities across continents.

Front

What are greenhouse gases?

Back

Greenhouse gases are gases in Earth's atmosphere that trap heat, including carbon dioxide, methane, and nitrous oxide.

Front

What is the Earth's climate clock?

Back

The Earth's climate clock is a concept that suggests we are currently in a cycle that may lead to a minor ice age due to natural climate variations.

Front

What role do glaciers play in climate?

Back

Glaciers store large amounts of freshwater and reflect sunlight, influencing global temperatures and sea levels.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which greenhouse gases trap heat in the atmosphere, keeping the Earth warm enough to support life.

Front

How do human activities contribute to climate change?

Back

Human activities, such as burning fossil fuels and deforestation, increase the concentration of greenhouse gases in the atmosphere, accelerating climate change.