A town is covered by an inversion layer 500 m above the ground. The town’s area is approximately rectangular with dimensions 9 km by 12 km. The incoming air is clean and the wind is blowing at 3 m/s, parallel with the 12 km side of the town. SO2 emissions in the town come from a number of small sources and average 0.0008 mg/m2-s. An industrial plant also emits 2,150 kg/day of SO2. Assume the air above the town is well-mixed. Calculate the state-state concentration of SO2 in the town’s air.

it means there are 3 atoms of oxygen

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

c

explanation: