A room is filled with saturated moist air 25 ⸰c and a total pressure of 100kpa. If the mass of dry air in the room is 100kg, the mass of water vapour is (take vapour pressure of water at 25 ⸰c is 3. 173kpa).

Aresearch institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1085 and x=528 who said “yes”. use 90% confidence level

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.

Essay on sustainable development of soiciety