ADMICRO

The reason why glaciers melt (i) _______ the warm weather. In 1850, many glaciers melted or became very small. This period is called the Little Ice Age. Melting glaciers are very normal and common. But after 1980, scientists have discovered (ii) _______  glaciers melt faster than usual. This melting or retreating of glaciers is the result of global warming. The weather on Earth has become warmer and this has a negative effect (iii) _______ the environment. When glaciers melt, the water flows into valleys and causes big floods. In addition, glaciers are made up of fresh water. Actually, glaciers contain the largest (iv) _______ of fresh water in the world. When glaciers melt, this fresh water gets mixed with dirt, sand, rocks and salt. Il is no longer good lor drinking and gets (v) _______.

(iii)______

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