Storms spanning a few kilometers to a hundred kilometers in which intense vertical circulations develop, resulting in heavy precipitation, lightning and thunder are known as:

What is the main source of phosphorus?

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.

The days of the “midnight sun,” when the sun never really sets at night, occur during what season?