Question

defineone atmosphere​

Answer 1

Explanation:

1 atmosphere= 1.01×10^5 Pa(pascal).

An atmosphere (atm) is a unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees Celsius (59 degrees Fahrenheit). One atmosphere is 1,013 millibars, or 760 millimeters (29.92 inches) of mercury. Atmospheric pressure drops as altitude increases .

Answer 2

Answer:

the mixture of gases that surrounds the earth or any other star, planet, etc.

Explanation:

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.