Voyage of the Continents 1of5 Oceania

What are some of the geological events caused by these forces as mentioned in the video?

• Volcanic eruptions, earthquakes, tsunamis, mountain formation, ocean floor uplift, and continent creation.

• Hurricanes, tornadoes, droughts, floods, and wildfires.

• Erosion, weathering, soil formation, and sediment deposition.

• Glacier melting, river meandering, delta formation, and sand dune movement.

which continent is described as the most geologically stable place on the planet?

• Australia

• Africa

• South America

• Europe

What is the name of the ancient crystals found in Western Australia that are the oldest existing matter on Earth?

• Zircons

• Diamonds

• Quartz

• Topaz

What is the significance of the Pilbara region of Western Australia as described in the passage?

How old are the oldest zircons found in Western Australia, according to the passage?

• Around 4.4 billion years old

• Around 2.5 billion years old

• Around 3.2 billion years old

• Around 1.8 billion years old

What does the discovery of ancient zircons in Western Australia reveal about the early Earth?

What are stromatolites?

• Structures formed by colonies of living microorganisms.

• Fossilized remains of ancient plants.

• Mineral deposits found in caves.

• Layers of volcanic ash.

How old are the rocks mentioned in the passage that contain stromatolites?

• 3.4 billion years old.

• 1.2 billion years old.

• 500 million years old.

• 2.1 billion years old.

What was the atmosphere of early Earth rich in before the change caused by stromatolites?

• Carbon dioxide and other gases like sulfur dioxide.

• Oxygen and nitrogen.

• Methane and large amounts of ozone.

• Hydrogen and helium.

What process uses sunlight energy and water to make body parts carbon and then gives off O2?

• Photosynthesis.

• Respiration.

• Fermentation.

• Transpiration.