Hello my name is David and I want told you about one endangered animal. After it I want told you about our beautifull oceans. And about some world problems.
Pink River Dolphin.
The Amazon river dolphin is one of the river dolphins formerly included in the super family Platanistoidea, making it paraphyletic; it has since been moved to Inioidea. Although not a large cetacean in general terms, this dolphin is the largest freshwater cetacean; it can grow larger than a human.They have unfused neck vertebrae, enabling them to turn their heads 90°. Their flexibility is important in navigating through the flooded forests. Also, they possess long beaks which contain 24 to 34 conical and molar-type teeth on each side of the jaws.
The world's
Amazing oceans
There are five oceans- the Pacific, the Atlantic, the Indian, the Southern and rhe Arctic Oceans. They cover an amazing 71% of the Earth's surface and make up 97% of its water supply, so they're very important for our suvival!
We've only explored 10% of the oceans . So far, scientists have recorded more than 230.000 species of living creatures and plants and that's just underwater!
World's main problems
One very big problem in our world is pollution
Look at any ecosystem and there could be multiple forms of contamination—streams full of toxic chemicals from industrial processes, rivers overloaded with nutrients from farms, trash blowing away from landfills, city skies covered in smog. Even landscapes that appear pristine can experience the effects of pollution sources located hundreds or thousands of miles away.
Pollution may muddy landscapes, poison soils and waterways, or kill plants and animals. Humans are also regularly harmed by pollution. Long-term exposure to air pollution, for example, can lead to chronic respiratory disease, lung cancer and other diseases. Toxic chemicals that accumulate in top predators can make some species unsafe to eat. More than one billion people lack access to clean water and 2.4 billion don’t have adequate sanitation, putting them at risk of contracting deadly diseases.
Racism
Racism consists of several different and often related ideologies centered around the concept of race. Modern variants are often based in social perceptions of biological differences between peoples. These can take the form of social actions, practices or beliefs, or political systems that consider different races to be ranked as inherently superior or inferior to each other, based on presumed shared inheritable traits, abilities, or qualities. It may also hold that members of different races should be treated differently.
Pink River Dolphin.
The Amazon river dolphin is one of the river dolphins formerly included in the super family Platanistoidea, making it paraphyletic; it has since been moved to Inioidea. Although not a large cetacean in general terms, this dolphin is the largest freshwater cetacean; it can grow larger than a human.They have unfused neck vertebrae, enabling them to turn their heads 90°. Their flexibility is important in navigating through the flooded forests. Also, they possess long beaks which contain 24 to 34 conical and molar-type teeth on each side of the jaws.
The world's
Amazing oceans
There are five oceans- the Pacific, the Atlantic, the Indian, the Southern and rhe Arctic Oceans. They cover an amazing 71% of the Earth's surface and make up 97% of its water supply, so they're very important for our suvival!
We've only explored 10% of the oceans . So far, scientists have recorded more than 230.000 species of living creatures and plants and that's just underwater!
World's main problems
One very big problem in our world is pollution
Look at any ecosystem and there could be multiple forms of contamination—streams full of toxic chemicals from industrial processes, rivers overloaded with nutrients from farms, trash blowing away from landfills, city skies covered in smog. Even landscapes that appear pristine can experience the effects of pollution sources located hundreds or thousands of miles away.
Pollution may muddy landscapes, poison soils and waterways, or kill plants and animals. Humans are also regularly harmed by pollution. Long-term exposure to air pollution, for example, can lead to chronic respiratory disease, lung cancer and other diseases. Toxic chemicals that accumulate in top predators can make some species unsafe to eat. More than one billion people lack access to clean water and 2.4 billion don’t have adequate sanitation, putting them at risk of contracting deadly diseases.
Racism
Racism consists of several different and often related ideologies centered around the concept of race. Modern variants are often based in social perceptions of biological differences between peoples. These can take the form of social actions, practices or beliefs, or political systems that consider different races to be ranked as inherently superior or inferior to each other, based on presumed shared inheritable traits, abilities, or qualities. It may also hold that members of different races should be treated differently.
