Understanding Concepts from the Video Tutorial

How might marathon runners react if humans had four legs?

• They would be happier.

• They would be confused.

• They might give up.

• They would run faster.

What is one reason flamingos stand on one leg?

• To look taller.

• To sleep better.

• To minimize heat loss.

• To attract mates.

What would be a challenge if our legs were made of steel?

• They would be too short.

• They might become very heavy.

• They would be too colorful.

• They would be too flexible.

What record might a road around the world achieve?

• Most expensive road.

• Fastest road built.

• Longest road in the world.

• Most scenic road.

What might happen to the ocean's food chain if sharks disappeared?

• It would become more diverse.

• It would improve.

• It might collapse.

• It would remain stable.

What might happen to tea lovers if tea disappeared?

• They would be indifferent.

• They would be happy.

• They would switch to water.

• They would be sad.

Why is ice slippery according to scientists?

• Due to a film of liquid water.

• Because of its smooth surface.

• Due to its color.

• Because it is cold.

Why do tigers appear green to deer?

• Because tigers camouflage well.

• Because tigers are actually green.

• Because deer are colorblind to orange.

• Because deer have poor eyesight.

What might happen if humans were made of fire?

• They would be invisible.

• They would be able to swim.

• They would be afraid of water.

• They would be cold.

What might happen to coffee's popularity if tea disappeared?

• It would remain the same.

• It would decrease.

• It would become unpopular.

• It might skyrocket.