The radioactive gas 135 Xe ( 100 MBq s-' from a vent 40 m above ground into a wind with v= 3 ms. (a) Calculate
the total external y-ray dose H received downwind at a distance of 109 m. (b)* At what
distance would the dose be a maximum?

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

the man is bald so he has no hair to get wet

the dark variety, as they are not visible on the dark tree barks

explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs