It is estimated that 100 million animals die every year due to water pollution.
In addition, ocean pollution affects 1,000 species of marine animals. However, these are rough estimates because it is almost impossible to calculate the exact number of animals killed by water pollution. Polluted water can pose a serious threat to both animals and humans. Animals and plants living in this water often die from this pollution.
Even if a particular animal did not die from pollution, it would likely die from changes in the food chain. Animals and people who drink water from this source can contract bacteria and diseases that are often carried in this water.
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Answer: Some geographic areas have obvious natural advantages that result in cluster formation. For example, proximity to a large port will attract exporting firms or areas rich in minerals will attract clusters of mining firms. In addition, there are three well-established reasons why firms choose locate in close proximity. The cost of transporting goods is reduced when firms are located close to their customers or suppliers. Input suppliers can exploit economies of scale in large clusters of downstream firms who, in turn, benefit from timely delivery and lower inventory costs.
Explanation: There are various types of clustering are that include:
^ Connectivity-based Clustering (Hierarchical clustering)
^ Centroids-based Clustering (Partitioning methods)
^ Distribution-based Clustering.
^ Density-based Clustering (Model-based methods)
^ Fuzzy Clustering.
^ Constraint-based (Supervised Clustering)
Mount McKinley is the tallest US mountain and Mount Everest is the tallest southwest asian mountain, therefore the tallest mountains in southwest asia are taller than the tallest mountains in the US
Canada's overall population density does not provide a clear picture about Canada's population.
Explanation:
Canada is one of the biggest countries in the world, second biggest to be more precise, but its population is pretty small for its territory. The population of this country is only slightly more than 37 million people, and when compared to the two countries closest to its size, China and the United States, having over 1.3 billion and over 320 million people, the differences is clear to see. Canada's population density is only 3.92 people on square km, making it one of the most sparsely populated countries in the world.
Those figures though doesn't give a clear picture about Canada's population. The southeastern part, southern part close to the U.S. border, and the southwestern part, all have medium to high population density, and the majority of the Canadians live in those parts of the country. On the other hand, the smaller percentage of the population lives in all of the rest of the country, and there are areas which don't have a single person living in them, and the small inhabited places are often several hundred km away from each other.
Other countries that have large territories, but small populations (for their size) which are not evenly distributed are:
- Mongolia
- Kazakhstan
- Australia
- Saudi Arabia
- Russia
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