20 POINTS: ANSWER IN YOUR OWN WORDS

Why are natural resources unevenly distributed?
(Must be at least 3 sentences to get brainliest!)

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are