GU amibling
Glaciers
Glaciers are very large sheets of snow and ice that pile up on land for
long periods of time. They are the second largest source of water on
Earth after the oceans. There are two main types of glaciers. The first is
alpine glaciers, which are found in the mountains. The other is
continental glaciers, which cover continents.
Glaciers move over time. They slowly flow downhill. Some glaciers are
getting bigger, but others are shrinking. Even though they are made of
snow and ice, glaciers are very powerful. They change mountain valleys
from a "V" shape to a "U" shape by pushing great amounts of rock and
cap.
earth. When a glacier forms on top of a mountain, it is called an ice
A narrow strip of ice on a beach in the Arctic is called an ice foot.
1 Which of the sentences below best expresses the essential information
2014-
in the first highlighted sentence in the passage?
(A) Glaciers are large and long-lasting piles of snow and ice that form on land.
(B) Glaciers are very big areas of snow and ice that never move.
(C) Glaciers are the biggest accumulations of snow and ice on Earth.
(D) Glaciers are large sheets of snow and ice, so they can be a water source.
2 Which of the sentences below best expresses the essential information
in the second highlighted sentence in the passage?
(A) Glaciers move downhill and change into mountain valleys.
(B) The power of glaciers changes the shape of mountain valleys.
(C) The large amounts of rock in glaciers change mountain valleys.
(D) Glaciers are more powerful than mountain valleys.
Juulanu ans siautoim
What are the two main types of glaciers?
mis doww, 216ioniM
