The mole fraction of neon in the air is about 2. 6 x 10–5. If the average molar mass of air is 28. 96 g/mol what is the concentration of neon in air in ppm?.

Give an example of the type and scale of economic activity for a traditional economy.

An ancient marble statue is moved from a rural location to a highly polluted city explain how the move might affect the statue and why you think so

Scientists observed a rock stratum and discovered some fossils. the image shows the fossils they discovered. what can you interpret from the image? an illustration showing layers rock with fossils embedded in some rock layers1. the dinosaur and the mammoth existed after the trilobites.2. the dinosaur and the armored fish existed before the trilobites.3. the trilobites and the armored fish died before the dinosaur.4. the trilobites and the armored fish were born after the dinosaur.5. the early mammoth is older than the trilobites.