Why is there is ebb and flow?

Waves at the beach of Lisabon

Twice a day, the water will go off and on. If the water rises, we say call is ebb tide.

Tides are mainly due to the difference in attraction exerted by the moon on parts of the earth. We can divide the earth into three areas: areas closer to the moon has the strongest attraction, area's far from the moon are turned away, the weakest, and then there are the parts that lie between here. If these three areas were not subject to the influence of the moon, there would be a water storage occur on the two opposing portions. But because the spike-rotates, move this mountain water, also called flood mountains, is an apparent movement of the Moon around the Earth. The sun exerts an influence here, but because the sun is much farther from Earth than the moon, this influence is much less. When the sun, moon and earth are in line, the sun strengthens the tides caused by the cooperation between the sun and the moon. In this case we speak of spring. The flood has a maximum height. In the other case, there is slack water. This occurs when the sun is perpendicular to the line to the moon at a minimum height. The sun does the tidal movement against it.

Naturally biodegradable plastics based on natural products such as corn

There are also packages that are already environmentally degradable by nature. These packages mostly based on oil are now made from natural products such as corn. These products can be naturally broken off within a few months or dissolved when we put them in the ground. For now there are floating two big dumps of plastic the size of America in the ocean the islands are about 20 meter thick. There is even plastic found from more than 50 years old on these belts. Surely this cannot be good for our environment. And the belts only get bigger by day. If we don't resolve this problem soon, than soon we all will live on our own garbage dump, then we will live in an even less healthy environment than now already is. We owe this to the governments who in earlier days released their garbage in into the sea and thought they were from it. What will be the next thing? Will be floating in the sea ... on nuclear waste? ... or is this already the case?