Which statement about electric and magnetic fields is true.1)electric and magnetic fields start at a positive and end at a negative.2)magnetic fields must start at the north pole of a magnet and end at the south pole of the magnet.3) electric fields must leave a positive charge and end on a negative charge.4) electric fields and magnetic fields loop from north to south

The arctic is a cold deset biome, which one of the answers is not correct? a) animals in cold deserts burrow to get out of the harsh climates. b) vegetation in cold deserts is normally shallow rooted small shrubs. c) animals in cold deserts hibernate most of the year to get out of the cold. d) soils are very heavy and course. e) the region receives less than 10 inches of precipitation annually.