The answer is A. 1 atm.
Solution:
Pressure in terms of height can be calculated using the formula:
P = pgh
where: p = density (kg/m^3); g = gravitational constant (m/s^2); h = height (m)
Using SI units: P = 1000(kg/m^3)9.81(m/s^2)10(m) = 98,100 Pascals
Convert Pascals to atm:
98,100 Pa (1 atm/101325 Pa) = 0.968 atm = rounded up to 1 atm
