Tsunamis

Question 1

Which statement about how fast a tsunami moves across the ocean is correct?

Accepted Answer

A tsunami can travel across the ocean at speeds of hundreds of miles per hour, much faster than ordinary waves.

Answer

A tsunami stops moving as soon as it leaves the deep ocean.

Answer

A tsunami travels at the same speed as normal waves that roll onto the beach.

Answer

A tsunami moves only a few feet per hour, like a very slow river.

Question 2

When a volcano suddenly erupts on the ocean floor, why does a huge wave (a tsunami) form?

Accepted Answer

The eruption pushes a lot of water upward, creating a fast‑moving wave.

Answer

Strong wind above the sea blows the water into a big wave.

Answer

The loud sound of the eruption pushes the water like a splash.

Answer

The heat makes the water expand slowly and rise.

Question 3

When a giant wave from a tsunami reaches the shore of a small beach town, which of the following describes the damage it can cause?

Accepted Answer

It rushes onto land, flooding houses, breaking walls, and sweeping away roads and anything that isn’t nailed down.

Answer

It makes the sand very hot, so shells and shells melt.

Answer

It only shakes the ground a little, so nothing on the beach is broken.

Answer

It creates a loud splash and then the water goes back to the ocean without leaving any mess.

Try three questions