Which of the following is not true about polar bears? a. they all hibernate. b. they have black skin that them absorb heat. c. their fur is transparent and hollow and trap heat. d. they have oversized paws with rough pads that them walk on snow and ice.

The answer is A

They don't actually need to hibernate

Correct A). They all hibernate

The polar bear does not hibernate. Brown and black bears hibernate during the winter season in order to conserve energy and stay warm. But the polar bears do not do that except the females that are pregnant. Actually, the polar bear does need to hibernate because they are able to live on the fat that is stored in their body.

Hence, the correct answer would be option A.

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.