2015-09-06
431
1). It is estimated that 69% of worldwide water use is for irrigation.
2). It is estimated that 22% of worldwide water use is industrial.
3). This hydroelectricity is a low-cost, non-polluting, renewable energy source.
4). Water is used in renewable power generation.
5). Hydroelectric power plants generally require the creation of a large artificial lake.
6). It takes around 3,000 litres of water, converted from liquid to vapour, to produce enough food to satisfy one person's daily dietary need.
7). Water is also used in many large scale industrial processes, such as thermoelectric power production, oil refining, fertilizer production and other chemical plant use.
8). The process of driving water through the turbine and tunnels or pipes also briefly removes this water from the natural environment, creating water withdrawal.
9). Hydroelectric power derives energy from the force of water flowing downhill, driving a turbine connected to a generator.
10). Water withdrawal can be very high for certain industries, but consumption is generally much lower than that of agriculture.
Fill in the gaps choosing the words from the box. Translate the sentences.
| discharge, It takes, considerable, inhabit, refineries, solvent, altitudes, artificial, overheating |
1). … around 3,000 litres of water, converted from liquid to vapour, to produce enough food.
2). Major industrial uses include hydroelectric dams, thermoelectric power plants, which use water for cooling, ore and oil...
3) Heat from the sun evaporates water, which condenses as rain in higher … and flows downhill.
4). Pressurized water is used in the cooling of machinery to prevent...
5). This is a … amount, when compared to that required for drinking.
6). Hydroelectric power plants generally require the creation of a large … lake.
7). Manufacturing plants use water as a …
8). To produce food for over 7 billion people who … the planet today requires the water that would fill a canal ten metres deep, 100 metres wide and 7.1 million kilometres long.
9) … of untreated water from industrial uses is pollution.
