Civil Engineering - Hydraulics - Discussion

Agree, D is the correct answer.

D is the correct answer.

Altitude is the correct answer.

D is the correct answer.

D is correct answer.

Atmospheric pressure decreases at higher altitude, because it for cooking more time required at altitude.

And it also varies with temperature warmer air exert more pressure than colr air.

The correct answer is A.

Pressure on Earth varies with the altitude of the surface, so air pressure on mountains is usually lower than air pressure at sea level. Pressure varies smoothly from the Earth's surface to the top of the mesosphere. Although the pressure changes with the weather, NASA has averaged the conditions for all parts of the earth year-round. As altitude increases, atmospheric pressure decreases. One can calculate the atmospheric pressure at a given altitude. Temperature and humidity also affect the atmospheric pressure, and it is necessary to know these to compute an accurate figure. The graph at right was developed for a temperature of 15°C and relative humidity of 0%.

The answer is A as altitude increase atmospheric pressure decrease.

Agreed @Vilas Tembhurne and @Maulik Joshi.

Option D is correct. Atmospheric pressure increases with altitude as well as with temperature.