On the questions in the changes in longitude section (where there is an answer of 79 and 85 already and a blank) i need all 3

What is the difference between an igneous, sedimentary and metamorphic rock

Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance