I like all animals but my favourite one is a whale. I like to read something about them and to watch films on TV.
Whales are not fish; they are the biggest sea animals on our planet.
They can be found in all the oceans.
The word ‘whale’ comes from the Greek language and is translated as a sea monster.
They live about 30 to 50 years and some of them even more than that.
There are different kinds of whales: some of them are very big. Blue whales, for example, are about 30 metres long and can weigh up to 150 tons. Other kinds are about 5 metres long and weigh about 4 tons.
The can dive as deep as 1 kilometer, not more.
They can swim under water from 10 up to 40 minutes, and then they must come to the surface of the water to breathe.
Whales can develop speed up to 20 and even 40 km/h. (kilometers per hour)
Some kinds of whales have teeth and one tooth weighs 1 kilogramme.
Whales feed on marine plankton, mollusks, fish, and krill. Some kinds eat sea animals: seals, penguins, etc.
People kill whales for their fat and whalebone.
For several centuries, the number of plant and animal species has been inexorably declining at a high rate.
Deforestation is happening all over the planet and even affects parks and protected areas, which are the main supplier of oxygen on the planet.
Considerable harm to the flora is also caused by acid rain, which is caused by various enterprises, mostly metallurgical industries.
Atmospheric pollution has not bypassed any country.
Everywhere there are industrial enterprises, harmful emissions poisoning the air, exhaust gases from vehicles.
Soil pollution occurs regularly through the disposal of waste in the ground.
Moreover, not only enterprises, but also ordinary people.
Waste, rapidly increasing in volume, is often used as fertilizer for growing fruits and vegetables, the benefits of which are extremely doubtful.
Industrial waste also harms rivers, lakes and other bodies of water.
In many parts of the world, the water is undrinkable.
Every year, more than 26 million tons enter the world's oceans.
oil products, a huge amount of non-decomposing substances, products of the chemical and military industries.
Which in turn affects marine life.
The ozone layer is destroyed by freon-based aerosols, aircraft and spacecraft engines.
It is no secret that over the past decades, the number of minerals has almost halved.
This threatens the premature destruction of all resources and the extinction of energy sources.