The world is home to more than 2 billion people and has more than 6.3 billion lakes and rivers, according to the United Nations.
Many of the lakes and waterways in the world are sacred, as they contain water from sacred rivers, lakes, seas and lakes.
But some are also filled with invasive species, like invasive species of algae.
There are also other problems.
Some lakes are polluted with chemicals from industrial and agriculture runoff, and some have toxic algae blooms that can cause liver problems and death.
And even though many of the rivers and lakes are clean, there are still a few that have pollution problems.
Here are some of the top 10 most dangerous spots to visit in the U.S. and Canada: Lake Ontario in Ontario, Canada The lake is one of the world’s largest and most biodiverse lakes, home to a diversity of fish species.
It’s also home to thousands of different aquatic plants and animals, including many native species.
One of the more famous aquatic species in the lake is the warty wattle, a plant that has been known to be harmful to humans.
This warty-wattle plant has been found in the Great Lakes for centuries.
In recent years, a number of invasive species have made it into the lake, causing algae blooming, algae infections, and death to the warts and warty mats.
But the lake has also been affected by other environmental threats, including human development.
In the early 1900s, Lake Ontario was filled with the largest population of Europeans in North America.
As a result, Europeans developed an obsession with eating the warties.
Today, only a handful of European families still eat the warted warts.
Lake Michigan in Michigan, United States The Lake Michigan is one the largest lakes in the United States.
It sits on the shores of Lake Superior, a massive lake that’s the second-largest in the nation.
It has a total of 9.5 million acres of water, which makes it the second largest lake in the country after Lake Superior.
A number of species of aquatic life live in the water, including the blacklegged frog, a species native to the Great Lake of Michigan.
In addition to being a source of habitat for fish, the lake also contains a number (but not all) of aquatic plants.
The Great Lakes have also suffered from a number more invasive species that are causing problems.
The red tide is one example of a common threat to the lake’s aquatic life.
Scientists have identified red tides as one of several problems caused by humans in the area.
One red tide can be caused by a person ingesting sewage from a treatment plant or by people driving through the area, which can contaminate the lake with chemicals that can harm fish and other aquatic life in the surrounding area.
In 2006, the Michigan Department of Environmental Quality issued a “water quality report” for the lake.
The report showed the lake had elevated levels of two contaminants, chloramines and benzene, which are commonly found in sewage treatment plants.
One problem is that the lake was not listed as a “public health priority” by the state, meaning it’s not listed for development or for use in human health programs.
Some areas of the lake are also home the invasive species known as red tide parasites.
Some red tide populations have grown to be larger than they should be, and researchers are worried about their impact on fish populations and their ability to feed themselves.
The invasive species can be found in lakes, rivers and streams, but there are no easy answers to how to deal with them.
One lake, Lake Michigan, in Michigan has the highest number of red tide species in any state, according the American Aquatic Species Foundation.
According to the AASF, Lake Detroit is the second most populous lake in Michigan with about 11,000 species of fish.
Lake Erie is the fourth largest lake on the United Kingdom’s coastline.
It is also home of the Black Death, a deadly disease that killed millions of people and killed off millions more.
In 2011, scientists in the UK discovered that a number species of invasive fish that live in Lake Erie were eating off the shores.
The research revealed that some of these fish are carrying the disease and feeding off the lake as it is contaminated with toxic algae.
Some fish in the Lake Erie ecosystem were also eating off nearby beaches and into the water.
Many fish in Lake Michigan are being affected by invasive species.
In 2007, the Lake Michigan National Marine Sanctuary reported that invasive fish had grown in Lake Ontario, a lake with a population of less than 3,000 fish.
Researchers are also concerned about the impact that these invasive species are having on aquatic life and the water quality in the region.
Many lakes and ponds in the eastern U.K. are contaminated with chemicals and algae bloomes.
In some areas, lakes have been contaminated by industrial waste from farms and factories.
These chemicals can contain toxic metals like lead, mercury, arsenic and cadmium.
Many aquatic species have been found to be sickened