1.  All you need is a clean water-supply and an efficient way of getting rid of human excrement.

2.  Along the link there also flows a realisation that there are more efficient ways to run a country.

3.  Both are more efficient ways for subscribers to download and upload more and larger files, thus increasing network usage.

4.  But, given that we already have the separated material, civilian reactors provide an efficient way of permanent disposal.

5.  Economy in bits can be achieved by using more efficient ways to represent data.

6.  Email is an efficient way of contacting a large number of people.

7.  Instead of allocating resources in the most efficient way there is a list of priorities.

8.  Screening by income criteria alone is not an efficient way of discovering nutritional risk.

9.  The kitchen should be well ventilated, and an extractor fan is an efficient way of doing this without creating draughts.

10.  The most efficient way to heat a house is to give each register its own supply duct directly off the trunk lines.

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