Abubble of unsaturated air is rising through the atmosphere. when the bubble of air reaches an elevation of 1000 meters its temperature has decreased 10 degrees centigrade. this phenomenon is best described as the

phenomenon is dry adiabatic lapse rate

Explanation:

air babble elevation = 1000 meters

temperature = 10 degree decrease

to find out

phenomenon is best described as

solution

we know bubble is unsaturated air is rising through the atmosphere

bubble reach height 1000 meter and temperature 10 degree

than phenomenon is dry adiabatic lapse rate

because when parcel of  air  is  lift and  pressure  decrease with height and temperature fall down by expansion and rate of temperature fall 1°C /100 m  in dry Adiabatic lapse rate parcel  descends to  higher pressure and temperature then increase at rate  1°C / 100 meters

this his  phenomenon is dry adiabatic lapse rate

3.2x10^7

it would be kevlar ^^