Understanding Earth: A Geographical Quiz

What is the thickness range of Earth's crust?

• 11 km to 32 km

• 10 km to 30 km

• 15 km to 35 km

• 20 km to 40 km

What are the crustal plates primarily responsible for?

• Carrying oceans and continents

• Creating the atmosphere

• Generating Earth's magnetic field

• Producing solar radiation

What is the composition of Earth's outer core believed to be?

• Liquid hydrogen and helium

• A mixture of iron and nickel

• Solid rock and diamond

• Molten silver and gold

Who proposed the theory of continental drift in 1912?

• Isaac Newton

• Charles Darwin

• Alfred Wegener

• Albert Einstein

What evidence supports the theory that continents were once joined?

• The presence of the same animal species on all continents

• Identical climate conditions in different continents

• Similar rock structures and fossils on different continents

• Matching ocean depths across different continents

What is primarily responsible for the movement of tectonic plates?

• Convection currents in the mantle

• Gravitational pull from the moon

• Electromagnetic forces from the sun

• Solar winds

What is the main gas composition of Earth's atmosphere?

• Nitrogen, oxygen, and carbon dioxide

• Hydrogen, helium, and methane

• Nitrogen, helium, and neon

• Oxygen, carbon monoxide, and argon

What layer of the atmosphere is closest to Earth and contains most weather phenomena?

• Exosphere

• Troposphere

• Stratosphere

• Mesosphere

What is the estimated rate at which continents move?

• Between 1 and 5 centimeters per year

• Between 5 and 10 centimeters per year

• Between 10 and 15 centimeters per year

• Between 0.5 and 1 centimeters per year

What generates heat within the Earth's mantle?

• Radioactive decay

• Friction between tectonic plates

• Solar radiation absorption

• Lightning strikes