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Question
Complete the following paragraph by filling in the blanks with the most
appropriate words given.
Scientists all over the world are trying to invent newer ways for (1)---------- of energy without harming the environment. In Netherlands a team of scientists is researching into (2)----------- the waters of the North Sea to generate enough energy for thousands of homes. The experiment involves (3)-------------- a battery ,using salt and fresh water streams and channelizing them over stacks of membranes .The salt water contains positively charged sodium ions and negatively charged chloride ions . Electrodes were set up to create a battery which would generate power. Through this research, the Dutch are aiming at setting up a 200 mW power plant which will generate enough power to cater for three provinces. Blue
Water energy will be 30-40% more efficient than burning coal. It is also (4 )------------
and (5)---------------- Scientists in other parts of the world are also busy finding ways and means to generate energy. The (6)-------------- of a childhood pastime of flying kites gave
the senior scientists of Delhi University a brilliant idea. They felt that this simple childhood game could be used to provide some kind of breakthrough . By (7)------------------ a few kites tethered to a generator, this team realized that they could produce 10 KW of power. This was sufficient to power 10 family homes . The researchers now plan to carry this (8)----------------- further . Using multiple kites, they plan to generate 50 KW of power . They call this invention ,
Laddermill .
| A | B | C | D |
| generate | generated | generating | generation |
| tapping | tap | tapped | to tap |
| made | making | make | to make |
| renewed | renewable | renewing | renew |
| sustain | sustaining | sustained | sustainable |
| observing | observe | observed | observation |
| flying | flown | fly | flyer |
| inventiveness | inventing | invention | invented |
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Solution
Scientists all over the world are trying to invent newer ways for (1) generation of energy without harming the environment. In Netherlands a team of scientists is researching into (2) tapping the waters of the North Sea to generate enough energy for thousands of homes.
The experiment involves (3) making a battery ,using salt and fresh water streams and channelizing them over stacks of membranes .The salt water contains positively charged sodium ions and negatively charged chloride ions . Electrodes were set up to create a battery which would generate power. Through this research, the Dutch are aiming at setting up a 200 mW power plant which will generate enough power to cater for three provinces. Blue Water energy will be 30-40% more efficient than burning coal. It is also (4 ) renewable and (5) sustainable Scientists in other parts of the world are also busy finding ways and means to generate energy. The (6) observation of a childhood pastime of flying kites gave the senior scientists of Delhi University a brilliant idea. They felt that this
simple childhood game could be used to provide some kind of breakthrough . By (7) Flying a few kites tethered to a generator, this team realized that they could produce 10 KW of power. This was sufficient to power 10 family homes . The researchers now plan to carry this (8) inventionfurther . Using multiple kites, they plan to generate 50 KW of power . They call this invention , Laddermill .
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