Earth's Layers Quiz

What is the approximate thickness of the Earth's crust?

• 5-50 km

• 100-150 km

• 200-250 km

• 300-350 km

What is the state of the outer core of the Earth?

• Solid

• Liquid

• Gas

• Plasma

Which layer of the Earth is described as a thick viscous layer of magma that can move very slowly?

• The crust

• The mantle

• The outer core

• The inner core

What materials primarily compose the inner core of the Earth?

• Iron and nickel

• Silicon and magnesium

• Oxygen and silicon

• Carbon and iron

Who proposed the theory of continental drift in the early 1900s?

• Charles Darwin

• Marie Curie

• Alfred Wegener

• Isaac Newton

What was the name of the supercontinent mentioned in Alfred Wegener's theory?

• Gondwana

• Laurasia

• Atlantis

• Pangaea

According to the theory of continental drift, which period is associated with the existence of Pangaea?

• Cretaceous period

• Triassic period

• Jurassic period

• Permian period

What evidence supports the theory that continents were once connected?

• Similar rock formations found at the coastlines of different continents.

• The presence of the same animal species on all continents.

• The discovery of unique weather patterns across continents.

• The alignment of the moon and the sun with the Earth's axis.

What does the jigsaw-like fit of the coastlines of South America and Africa suggest?

• The continents are expanding.

• The continents were once joined together.

• The continents are unaffected by plate tectonics.

• The continents are randomly shaped.

Which type of evidence is indicated by similar fossils found on the coastlines of different continents?

• Meteorological evidence

• Biological evidence

• Astronomical evidence

• Anthropological evidence