Looking at page 14 of the earth science tables, how does the temperature change as a balloon rises through the Troposphere Stratosphere and Mesosphere? Increase, decreases, increases again

Decreases, increases, decreases again

Increases

Decreases

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?