Which of the following regarding atmospheric pressure is true?

air pressure at sea level is approximately 1013.2 mb.
the tropopause serves as a buffer against the pressure exerted by the atmosphere.
while the atmosphere exerts pressure, it is a negligible amount.
atmospheric pressure increases with altitude and is, therefore, lowest near the earth's surface.
atmospheric pressure is greatest in the mesosphere.
# 2)

which of the following regarding the dimensions of the known universe, the milky way, and our solar system is not true?

earth is closest to the sun during the month of june.
on average, the moon is 384,000 km (238,866 mi) from earth.
on average, the sun is approximately 150 million km (93 million mi) from earth.
which of the following regarding the dimensions of the known universe, the milky way, and our solar system is not true?
the known universe stretches approximately 12 billion light years in all directions.