How many servings of soup would i need to consume 20% of my daily requirement of fiber

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000