On Earth is born origin nova How did oxygen 18 indicate the presence of water early in Earth’s history?

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

What is true about all plutons? they form below earth’s surface. they form near earth’s surface. they form above earth’s surface. they cut across other rock layers.

Which technology do environmental scientists use to track the movements or polar bears and other vulnerable populations? a) geographic information system(gis) b)environmental dna(edna) surveillance c) global positioning system(gps) d) unmanned aerial system (uas)