Colossal Questions Quiz

What natural process is responsible for the formation of sand?

• Photosynthesis

• Volcanic activity

• Condensation

• Erosion

Which mineral gives tan sand its common color?

• Quartz

• Iron oxide

• Basalt

• Foraminifera

What is a unique feature of whale songs?

• They are silent

• They are composed of predictable patterns

• They are always the same

• They are only sung by female whales

Why might whales sing according to some experts?

• To attract mates

• To scare predators

• To find food

• To navigate

How do fish extract oxygen from water?

• By swallowing air

• Through their skin

• Using lungs

• Through gills

What distinguishes marine mammals like whales from fish?

• They have gills

• They breathe air using lungs

• They live only on land

• They do not need oxygen

What is the deepest known point in the ocean?

• The Atlantic Ridge

• The Great Barrier Reef

• The Challenger Deep

• The Mariana Trench

How deep is the Challenger Deep?

• 12,000 feet

• 21,180 feet

• 35,856 feet

• 7,000 feet

Why are oceans salty?

• Because of dissolved minerals from the sea floor

• From fish excretions

• Due to volcanic eruptions

• Because of rainwater

What happens to lakes without outlets for salt?

• They become freshwater lakes

• They dry up

• They become saltier than the ocean

• They overflow