The arctic environment is deathly cold, hence the thick blubber on animals so they can handle freezing temperatures
Explanation:
A common way to clear icy roads is to apply a layer of salt, which lowers the freezing temperature of water and melts the ice.
the most often the start of a scientific investigation. is observation
There's been a lot of bad news for polar bears recently. In 2007, for example, scientists reported that if global warming continues unabated, the population could drop two-thirds by 2050.