In the earths mantle the convection currents pass through the mantle which then causes friction in the tectonic plates causing earthquakes,volcanoes or tsunamis
Answer:
The presence in the air of one or more contaminants in such a concentration and of such duration as to cause a nuisance or to be injurious to human life, animal life or vegetation.
Answer:
Grizzly bears have many other adaptations that help them find food and survive. For example, they have a distinguishing shoulder hump that is actually a mass of muscle, which enables brown bears strength to dig. Also, their claws are long, making them useful in digging for roots or digging out burrows of small mammals.
Answer: Tropical Rain-forests
Explanation:
Tropical Rain-forests specifically those in Central Africa, Latin America and South-East Asia are considered the most diverse areas in the world with over half of animal species in the world as well as countless fauna calling these areas home even these forests cover less than 7% of the Earth's land mass.
For this reason Tropical Rain-forests are usually called the Cradle of life/biodiversity and surpass any other environment when it comes to biodiversity. Even the second which are Coral Reefs are known as Tropical Rain-forests of the sea which is a nod to just how diverse these forests are.