The Arctic Tundra

Question 1

Which sentence correctly describes the Arctic tundra?

Accepted Answer

It is a treeless landscape with permanently frozen ground (permafrost) just below the surface.

Answer

It is covered with many tall trees and the ground thaws completely in summer.

Answer

It is a hot desert with sand dunes and very little water.

Answer

It is a swamp full of standing water and lots of reeds.

Question 2

Jon is writing a story about a cold place where the soil under the surface stays frozen all year except for a thin top layer that thaws in summer. He needs a sentence that explains why no trees grow there. Which sentence is correct?

Accepted Answer

Because the ground is frozen deep down, tree roots cannot grow far enough to reach unfrozen soil and water, so trees cannot survive.

Answer

Because the water beneath the surface is always warm, which stops trees from being able to take root.

Answer

Because the land is covered with large rocks that block all sunlight, making it impossible for trees to get light.

Answer

Because the wind is so strong that it pulls any tree out of the ground as soon as it starts growing.

Question 3

Why can’t trees grow in the Arctic tundra?

Accepted Answer

The ground stays frozen just below the surface, so tree roots cannot grow deep enough to get water and nutrients.

Answer

Strong winds blow away all the tree seeds before they can sprout.

Answer

The soil is filled with large rocks that stop tree roots from spreading.

Answer

The summer is so hot that trees dry out before they can grow.

Try three questions

Which sentence correctly describes the Arctic tundra?

Jon is writing a story about a cold place where the soil under the surface stays frozen all year except for a thin top layer that thaws in summer. He needs a sentence that explains why no trees grow there. Which sentence is correct?

Why can’t trees grow in the Arctic tundra?

Keep going on this shelf