Fill in the gaps using one of the words in brackets: 1) The word environment … (is referred, refers, referring) to everything around us.

2) Environmental Science … (was becoming, became, has become) a key tool in our survival.

3) Environmental Science … (means, is meaning, has meant) learning to master ourselves.

4) The environmental crisis … (divides, can divide, can be divided).

5) The problems of depletion and pollution … (had worsen, can be worsen, will worsen).

6) Even renewable resources (are depleted, can be depleted, must be depleted).

7) In the USA excessive demand and poor land, management practices … (are destroying, are being destroyed, destroyed).

The child sat on a rock and looked at the river. She sat (1) perfectly still, looking at the family of ducks circling around on the surface of the dark water. Her eyes were large (2) greyish in colour and solemn. It was a (3) wonderful day in August. The sky was a (4) beautiful blue arc and (5) untouched by clouds, the (6) golden sun - a perfect sphere , and on this (7) colourful summer's aftermoon nothing stirred. The only sounds were the faint (8) buzzing of a bee flying above the roses. The child remained fascinated by the wildlife on the river, and so intent was she in her (9) concentration that she hardly moved. Isn't it an ideal picture of one's happy (10) childhood.

The child sat on a rock and looked at the river. She sat (1) perfectly still, looking at the family of ducks circling around on the surface of the dark water. Her eyes were large (2) greyish in colour and solemn. It was a (3) wonderful day in August. The sky was a (4) beautiful blue arc and (5) untouched by clouds, the (6) golden sun - a perfect sphere , and on this (7) colourful summer's aftermoon nothing stirred. The only sounds were the faint (8) buzzing of a bee flying above the roses. The child remained fascinated by the wildlife on the river, and so intent was she in her (9) concentration that she hardly moved. Isn't it an ideal picture of one's happy (10) childhood.