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Plants are a vital link in the ___, supporting animal life and contributing to the constant enrichment of the soil.

Problems have arisen over the Indian government's giant dam project in the ___ Narmada Valley, where many of Rudyard Kipling's stories are set.

Roger is extraordinarily selfish and possessive - a real ___in the manger.

Science can now create new types of foods ___ means of genetic manipulation.

Scientists are already working on blue roses ___ this technology.

Sea water ___ to form clouds which fall to earth in the form of rain.

Several cosmetics companies now claim that their products are not ___on animals, a policy which has been found to be popular with consumers.

So try to get your child to drink as ___ unadulterated water as possible, right up to the morning of an exam.

So, if you want to get some vitamin C into your child, use a little freshly ___ juice diluted with plenty of water.

Some highly processed drinks contain additives ___ as tartrazine, a yellow colouring that can aggravate hyper-activity and disrupt concentration.

Some market gardens find labour costs for casual workers so high that they allow the public to ___ the produce themselves.

Studies suggest that children ___ drink plenty of water find it easier to concentrate, retain information and do mental arithmetic, and also get fewer headaches.

Sugary foods ___ a profoundly negative effect on children’s behaviour, including their ability to study and sleep well.

The aim of the Snack Apple ___ to persuade children to eat more fresh fruit and vegetables.

The bulk of waste is therefore burnt and the resultant ___ used for infill.

The change in the climate of public ___means that using animals for entertainment is also frowned on.

The children watched open-mouthed as the meteor blazed across the evening___.

The critics say that more than 200,000 people will be uprooted and rehoused, and ancient ___cultures will be obliterated.

The dry grass around the swamp sways in the hot breeze, while antelope graze, ever fearful for the predators who may be ___from the shade of the few trees that dot the bush.

The early bird catches the ___.

The earth's recycling system is ruined by petroleum hydrocarbons and other pollutants, which harm the environment and which do not ___ to soil.

The flow of energy through the ecosystem drives the movement of ___within the ecosystem.

The fundamental source of energy in almost all ecosystems is radiant energy from ___.

The genes that make one natural blue ___ have recently been transferred from bacteria to flowers, so why not to food plants?

The government demanded to remove ___from this site.

The individual consumer must have a ___ that is based on an awareness of the need to recycle.

The international environment organization ___ has requested the French government to remove immediately highly toxic waste of French origin from Russia's territory.

The Japanese have learnt how to ___ paper waste into bricks, housing panels, and other construction materials.

The manufacturer ___the overall impact of his product on the environment and takes all factors into account from the selection of raw materials to the moment when all consumer value has been exhausted.

The Narmada dam will also offer a major ___of electricity to power-starved regions.

The old man led us all over town on a ___ chase, and so we never found the house we were looking for.

The term ___ can imply various methods of reprocessing secondary materials and reusing all sorts of products: household, waste packaging materials, even industrial waste.

The travellers gazed in awe at the___, a beautiful stretch of clear, fresh water surrounded by snow-capped mountains.

The week of exams left Ann exhausted, and she is still rather ___.

The World Bank recently halted funding as a result of intense pressure from ___, following an unfavourable independent review of the project.

The worldwide drive for saving resources calls ___ new ways to be found of curbing the rate at which the amount of waste increases.

Then there is a cold, dry, biting wind which brings ___ frosts.

There are plans to introduce ___ appealing products: peas which contain more vitamin C and broccoli, strawberries and tomatoes with more of the anti-cancer compound, sulphophane.

There are very few unexplored areas left in the ___

There have been experiments to use untreated waste for making ___ and of incinerating rubbish to power the air-conditioning systems in public buildings.

There is a general rule which states that the amount of a country's waste is proportional to its ___, implying that a larger amount of rubbish is proof of a higher standard of living.

There is a widespread revulsion against ___such as fox-hunting, and often activists endanger their own lives in an attempt to stop what Oscar Wilde called 'the unspeakable in pursuit of the uneatable'.

There is also a great deal of concern for the environment, with fears that GM crops ___ spread their genes by pollination to other plants growing nearby.

There is particular controversy ___soya, a common ingredient in processed foodstuffs.

There's something strange about that plan of Mary's. I smell a ___!

This is why canned fizzy drinks are the last thing that you ___ give them.

Those who live on the ___ tend to have a less sentimental view of nature than sity-dwellers.

Timing is important here because no one wants to be ___about going to the loo in the middle of things.

Too many cooks spoil the ___.

Unfortunately Donald doesn't try to understand grammar rules. He just learns sentences___.