River pollution презентация

Слайд 2

The King River

The King river in Tasmania is thought to be

The King River The King river in Tasmania is thought to be the
the most polluted river in Australia.
For about 70 years, it was used to dump the mining waste from a nearby copper mine. It’s now so acidic that nothing can live in it.

Photo courtesy of Riverhugger - granted under creative commons licence – attribution

Слайд 3

Murray-Darling Basin

The major water source for food production in Australia is

Murray-Darling Basin The major water source for food production in Australia is the
the Murray-Darling basin. This river system has become unhealthy due to the overuse of the water and pollution flowing into it from different sources.

The challenge for Australia is to make sure the water in the basin is managed sustainably.

Слайд 4

River Rubbish

River Rubbish

Слайд 5

Interesting Fact!

The Rhine is one of the longest and dirtiest rivers

Interesting Fact! The Rhine is one of the longest and dirtiest rivers in
in Europe. In 1986, after a fire at a factory in Switzerland, more than 30,000kg of chemicals spilled into the river. For about 200km downstream, all living things died.

Photos courtesy of sfmission.com, Kecko, onnola (@flickr.com) - granted under creative commons licence – attribution

Слайд 6

Interesting Fact!

Interesting Fact!

Слайд 7

Making a Water Filter

You can make your own water filter using

Making a Water Filter You can make your own water filter using a
a plastic bottle, sand, water, soil, a paper coffee filter and a jug.
What you will need:

Слайд 8

Making a Water Filter

Making a Water Filter

Слайд 9

Making a Water Filter

Now, study the water in the bottom of

Making a Water Filter Now, study the water in the bottom of the
the bottle.
It will look cleaner; however, it is definitely not fit to drink! Our drinking water is filtered many times before it’s ready to drink.

Слайд 10

Filtration

Filtration
Имя файла: River-pollution.pptx
Количество просмотров: 69
Количество скачиваний: 0